£35, ebay, both GBA, both like new and complete:
Boktai: The Sun is in Your Hands
Boktai 2: Solar Boy Django

I'm gonna play these inside and there's not a thing you can do about it Kojima!

1. Metal Gear Solid 2: Sons of Liberty

2. Metal Gear Solid/Metal Gear Solid 3/Metal Gear Solid 4/Final Fantasy VII

3. Yakuza 2

4. Zone of the Enders: The 2nd Runner

5. Resident Evil Code: Veronica X

6. Silent Hill 2

7. Shenmue II

8. Alundra

9. Shadow Hearts/Tales of Symphonia

10. Diablo II: Lord of Destruction

I find these lists hard to do, hence there are 14 games there. I'd find it easier to do a top 25 :P

I've got a list I want to add, but I need to know how to actually add PS1 Classics on Gamespot, would I just add it as a Playstation game? (Once I know I'll edit this post).dzms

Yeah that's the only way to do it mate, they don't list them seperately for the Classics downloads, just have to add them as they're listed for PS1.

Got rid of my import of God of War Collection and replaced it with

God of War Trilogy boxset (new, sealed, PS3) - £54.99, play.com

Pre-ordered it before but then cancelled and eventually decided to get again, lol.

Also I'm regretting the Batman: Arkham Asylum GOTY Edition, the 3D is seriously crappy. 

STALKER: Call of Pripyat Special Edition (new, compete, PC) - £12.49, play.com seller

Batman: Arkham Asylum GOTY Edition w/ 3D sleeve, 6 art cards & 2 packs of 2 B:AA 3D glasses (all new, sealed, PS3) - £35.84 (already have the collectors ed but bought again for the 3D because I'm a complete tool). 

S.T.A.L.K.E.R. Clear Sky Limited Edition (PC, like new/unused, complete) - £11.99, Amazon UK

CeX also had a complete copy of Twilight Princess for Gamecube for £32, a little bit cheaper than what it goes for online, which I asked them to keep aside for me. Is it worth getting since I already own the Wii version? It's getting pretty collectable now, but I don't really like spending a lot on something I already own... what do you think, guys? Is Twilight Princess for GC going to be a real collector's item soon or is it a load of fuss over nothing?

totalgridlock

I'd definitely get it at that price, the £50-65 price has been consistent for quite a while, considering the majority of people willing to pay so much for it are going to be those that'll hang onto it I don't see the price going down anytime soon, still if you have the Wii version it comes down to how much you want it in the collection I guess.

EDIT: Just pre-ordered the UK edition of Demon's Souls: Black Phantom Edition for PS3. As a heads up to PAL pals it was only just announced yesterday afaik and just put up on Amazon

StarCraft Battle Chest (PC/Mac, new & sealed) - eBay, $20 + $13 P&P to the UK

Haven't played it in... years. Thought I'd pick it up again before the sequel comes out (ie, before 2020). I'm gonna get good, go to competitions, bet on my opponent and intentionally lose, just like the real StarCraft pros do.

Team Ninja spree! Mostly ebay.

Ninja Gaiden Sigma (PS3, new, not sealed) - £9

Ninja Gaiden Dragon Sword + bonus sword stylus (DS, new sealed) - £7.99

Ninja Gaiden Sigma 2 Collector's Edition (PS3, new sealed) - £32.50

Dead or Alive (PS1, complete, like new) - £6.80 (got this before but seller lied about condition so I returned it, finally got it again)

Dead or Alive Ultimate (XBOX, double disc, like new) - idr, several quid

Also asked an ebay seller if they'd sell me a couple things they just listed for bidding as buy it nows and they sold me the Tales of Vesperia bonus disc in it's sleeve and Devil May Cry 3 art cards in their sleeve all as new for £5 incl postage, I don't even have Tales of Vesperia yet but it's on my to get asap list :P

I've only got three of those NES Classics to get (the elusive Ice Climber, the artificially inflated SMB and the surprisingly pricey Dr Mario). That was quick. Somehow I thought it might take me longer to track down complete copies... maybe I should set something wholly unattainable as my next collecting goal. Stadium Events, here I come!

totalgridlock

Awesome, feels great finally getting everything in a collection/series/franchise! You may be in luck with Stadium Events, apparently that copy that went for over $800,000 has been relisted because the price was been jacked up by two bidders who were timewasters. Think I'll pass on bidding for it though, seeing as I'd have to pawn my spare kidney to pay for it... and I don't want to think of either of my kidneys as 'spare' :)