Agp Vs Pci Express

[muhammad]

hi,

guys i have the following system.

Intel 3.0 HT
Intel 875PBZLK
MSI 6800 ULTRA 256Mb Agp - 8x
Sound Blaster Audigy 2 Zs
2 Gb Kingston DDR 400 Ram
120 Gb Sata
80 Gb Ide
Sony DVD Writer DRU 800-a
Sony DVD Rom
Sony Cd-Writer
21 Inch Flat Screen Hp p1110
Logitech mx1000

i was thinking of upgrading my pc , but i cant make up my mind , ppl say that my current rig is good enough for the latest games is that true.

i wanted to go for intel 955 motherboard with 3.2 ghz processor and a 7800 pci express card.

the only thing is i dont want to give my agp 6800 ultra , is there a board out there which has the latest chipset and also has agp .

do you think i should get a board with agp and pci express slots , there is 1 by msi it has nforce 4 chipset but is not 939 supported.

what do you say what should i do .

thanks