Need Upgrade Advice AGP vs PCI

[KingArthur]

I need new Graphics Card due to new BF2 game.
Confused as to whether I should get higher rated AGP card, and if so which one or for little more $ to get PCI card which would require new Mobo and Memory. I want as much playing power as I can get.

Please give advice as to what to do on modest budget under $1000

Present hardware:

CPU
AMD Athlon 64 3500+

Mobo
K8 Triton K8NS Ultra-939
AGP8X/DDR Channel DDR400

RAM
1024 MB

Present Vid Card
Nvida G-Force4 Ti4600

HDMaxtor 160GB

Full Tower w/400 W power supply

Thanks for your advice

 

[Vascular]

$70.00 MSI K8N Neo4-F Socket 939 NVIDIA nForce4 ATX AMD Motherboard - Retail
$299.99 eVGA 256-P2-N516 Geforce 7800GT 256MB 256-bit GDDR3 VIVO PCI Express x16 Video Card
$76.25 CORSAIR ValueSelect 1GB (2 x 512MB) 184-Pin DDR SDRAM Unbuffered DDR 400 (PC 3200)
$5.00 I-STAR 24 pin to 20 pin ATX Converter
$451.24 Total

Reuse your 3500+ 939
Reuse the 1gig of ram you have.
Reuse your case and power supply.
Reuse your optical drives.
Reuse your hard drive.