I would think that system would be plenty capable of acceptable performance. Of course important details were left out about the video card. Namely the type of RAM it has onboard, and the memory bus size. If it's 512MB of GDDR memory with a 64-bit memory bus, then a new video card would likely do wonders.
Also, do you have 2GB of RAM in a dual channel setup where you basically only have 1GB of actual usable memory, or do you have 2GB of RAM in a single channel config? If it's the former, then more RAM would likely help a lot.
And on an unrelated note as far as game performance goes, you really should install SP3. Which does help prevent malware from exploiting security holes patched in SP3. And malware could also be affecting your performance.
I've got an older computer (bought it in 2005) that I like to play World of Warcraft on but I get a very sluggish frame rate (around 5-8 FPS) in large scale raids or whenever there are 25+ NPCs or players on the screen. I'm trying to figure out what components I should upgrade to improve my FPS performance but I'm not exactly sure where to begin.
I've got an AMD Athlon 64 3500+ Venice 2.2GHz 512KB L2 Cache Socket 939 Single-Core Processor, an ASUS A8N-SLI Deluxe 939 NVIDIA nforce4 SLI ATX motherboard, 2GB (4x512MB) of Corsair XMS 184-Pin DDR SDRAM DDR 400 (PC 3200) Dual Channel Kit Desktop Memory Model TWINX1024-3200C2PT, an MSI NVIDIA 9600GT 512MB graphics card, a 200GB 7200RPM Seagate Barracuda SATA hard drive, an AuzenTech XPlosion 7.1 7.1 Channels 24-bit 96KHz PCI Interface Sound Card, a LITEON Black DVD burner 2MB Cache ATAPI/E-IDE and an Antec 550W power supply. I use Windows XP Pro service pack 2 with cable internet and up-to-date drivers.
My best guess as to what I should upgrade first would be my motherboard and processor, or maybe even my power supply if I decide to get a 2nd graphics card for an SLI setup.
Any thoughts or suggestions as to what route I should go would be extremely helpful.