Need help deciding on an upgrade system


Feb 12, 2009
Hello everybody, im in the process of selling my old socket 939 setup to finally advance from the stone ages,and upgrading to the am2+ or am3 platform, and my budget is around 350 - 430 so if you guys could help me find the best bang for the buck here id appreciate it alot =), i plan on keeping the following,
Xion 2 Case
Antec Earthwatts 500 Watt 80%+
Seagate Barracuda 320 GB 7200.10 RPM
Evga 8800 GTS 320 Mb

And I am selling these to help pay for the new parts,
Asus A8N32-Sli Deluxe Mobo
AMD Athlon 64 3500+ Venice 2.2Ghz
Centon 1 Gb DDR 400 (PC 3200)<---- Ewwww

And i was thinking about getting

but, i was also wondering if the old pci express 1.1 card i have would be compatible with the new 2.0 architecture, ive read around and heard from some saying it is, and some saying it is not,

Well thanks in advance for your opinions and your help.