Should i go SLI or just a new rig?

Current rig:

MB: Asus Maximus II Formula
RAM: Crucial PC2-5300 8GB
HD: 1TB
CPU: Intel 2 Quad Core Q9450
PSU: OCZ GameXtream 600watt
GPU: GIGABYTE GTX460 1GB

The MB is the only thing i don't like but what should i do? Just keep the rig and upgrade to two GTX460 1GB in SLI? Or just save money for something new in the future?

I was in your position a few weeks ago.

I ended up upgrading pretty much the whole system for a number of reasons:

My board supported only CrossFire (NO SLI support), just like your board unless you hack it.

I had 550W PSU which would not handle second GTX460, again your 600W PSU will most likely cause system crashes, because system with 2 GTX 460 draws close to 600W at times and most of PSU are not rated at 100%. You also need 4 power connectors, not sure if your PSU is SLI-ready.

I got heck of a deal on mobo/CPU combo during Black Friday sale.

If I could I'd keep my old system and just throw a second card and use it for another year or two. CPU was more than capable and RAM was not a problem either. Unfortunatelly my mobo and PSU were not future proof and I did not want to get new PSU and rewire the whole system now and than year or two later when I got new mobo/cpu/ram.

I was in your position a few weeks ago.

I ended up upgrading pretty much the whole system for a number of reasons:

My board supported only CrossFire (NO SLI support), just like your board unless you hack it.

I had 550W PSU which would not handle second GTX460, again your 600W PSU will most likely cause system crashes, because system with 2 GTX 460 draws close to 600W at times and most of PSU are not rated at 100%. You also need 4 power connectors, not sure if your PSU is SLI-ready.

I got heck of a deal on mobo/CPU combo during Black Friday sale.

If I could I'd keep my old system and just throw a second card and use it for another year or two. CPU was more than capable and RAM was not a problem either. Unfortunatelly my mobo and PSU were not future proof and I did not want to get new PSU and rewire the whole system now and than year or two later when I got new mobo/cpu/ram.

Creative

Darn totally oversaw my PSU's power and the Crossfire issue.

Thanks for reminding me, i'll just save some money for later :P