Ordering new pc today!

[silock]

Ordering new pc today and wanted to have you guys look this over for me. Are these good choices or do u recommend something better? Pc will mostly be for gaming @ 1680 x 1050 on a 22"monitor.

http://secure.newegg.com/WishList/PublicWishDetail.aspx?WishListNumber=6238405

 

[evongugg]

Do you already have the memory, case and power supply?

 

[silock]

Er sorry the memory is listed but here it is:
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model F2-6400CL5D-4GBPQ - Retail

And i have a case psu etc.

Let me ask you guys something else. Would it be worth it or would I see a difference at my resolution if i went with one of the HD 4870s that's all the rage right now?