Core 2 Duo Build Please comment

Hi i'm new to posting here, but I have read the forumz for a long time.

Now I am building a new C2D system and would like your comments.

Budget is $1500

I use the system to develop software and for video editing.
I usually have a lot of software installed and like to keep MP3 files and a lot of pictures. Office and internet related stuff. I am a casual gamer, none of the latest games but I would like to play Oblivion and Fear or some of the new games at some point with decent settings and 1280x1024 resolution.

The parts are mostly from Newegg just because I think that getting everything from one place will save money in shipping. If there are better prices for the parts and shipping is free I'm willing to change.

Video Asus EN7600GS Silent/HTD GeForce 7600 GS $129.00
PSU Hiper HPU-4B580-MS $99.99
Memory 2GB Corsair XMS2 64004 DDR2 800 $309.00
HDD 2 x Seagate Barracuda ST3320620AS RAID 0 $189.98
DVD PLEXTOR 16X SATA DVD Burner $90.99
Case Antec Performance I P180 Silver $136.13
Mother Gigabyte DQ6 $219.00
CPU Intel Core 2 Duo E6600 $339.00
Cooler Scythe Infinity $57.99

All about $1580.00

The Video card is small cause I will upgrade next year with a DX10 card
There may be some very mild overclocking at some point up to 6700 speeds.

I will be ordering soon so please help, I've read somewhere that DDR2 533 would be just right for my needs is this so?

G