Build Clarifications / Suggestion

I'm a first time Builder. My Chosen Configuration is:

Dual Boot: XP 32 Bit(Old Workhorse) and Vista 64 Bit(For Games)

Intel Core 2 Duo E8400 (No real advantage of quad in gaming)

Mobo : GIGABYTE GA-EP45-UD3P

Ram : Kingston 2x2 GB DDR2 800MHz

Graphics Card: MSI R4850-T2D512 Radeon HD 4850 512MB 256-bit GDDR3 (Or Some Equivalent Like 9800GTX)

Hard Drive: Seagate/Western Digital 320/500GB-7200RPM

Power Supply: Tagan/Corsair 600W

Standard ATX Case and Stock Coolers

Questions
Q1) Since 4850 takes 2 Slots(according to reviews in newegg) can I Crossfire later?

Q2) How bad is ATI's Support?

Q3) Will prices of i7 come down enough in 4 months to make it the Same Price? Will Price of DDR2/DDR3 come down?

Q4) IF Memory Standard is DDR2 1333 as given then i can't buy 800?,can i use DDR3.

Q5) While Assembling this do you think there would be any connection Problems? If anyone has Built this Tell me

Q6) Is the 4850 hot or hard to install. These Guys had Problems While putting a new cooling Solution http://www.digital-daily.com/video/msi_radeon_hd_4850_vs_radeon_hd4870/

(What is the normal temperature)

I'm a first time Builder. My Chosen Configuration is:

Dual Boot: XP 32 Bit(Old Workhorse) and Vista 64 Bit(For Games)

Intel Core 2 Duo E8400 (No real advantage of quad in gaming)

Mobo : GIGABYTE GA-EP45-UD3P

Ram : Kingston 2x2 GB DDR2 800MHz

Graphics Card: MSI R4850-T2D512 Radeon HD 4850 512MB 256-bit GDDR3 (Or Some Equivalent Like 9800GTX)

Hard Drive: Seagate/Western Digital 320/500GB-7200RPM

Power Supply: Tagan/Corsair 600W

Standard ATX Case and Stock Coolers

Questions
Q1) Since 4850 takes 2 Slots can I Crossfire later?

Q2) How bad is ATI's Support?

Q3) Will prices of i7 come down enough in 4 months to make it the Same Price?

Q4) IF Memory Standard is DDR2 1333 as given then i can't buy 800?,can i use DDR3.

Q5) While Assembling this do you think there would be any connection Problems? If anyone has Built this Tell me

Q6) Is the 4850 hot or hard to install. These Guys had Problems While putting a new cooling Solution http://www.digital-daily.com/video/msi_radeon_hd_4850_vs_radeon_hd4870/
azurueus

1. You could use crossfire later...IDK if you would lose a pci slot or cover some sata ports on the motherboard.

2. ATI support is good.

3. IDK

4. That motherboard can use DDR800, not DDR3

5. Depends on a lot of things, i.e what case you pick & how good are your at reading manuals.

6. The 4850 runs a little hot, but the fan control is now fixed with the latest drivers. Shouldn't be a problem.

Don't get a Seagate harddrive.

Q1)http://www.newegg.com/Product/Product.aspx?Item=N82E16813128358 gives Memory Standard as DDR2-1333,so shouldn't it be => than that (Basically what is memory Standard?)

Q2)Why not Seagate?

Q3) So I Shouldn't wait till April for i7 and DDR3?