Alright right now, I have the Dell Dimension 9100. My brother has an Alienware with some new parts he's added. He is buying new parts and needs 400$. Im getting one hell of a deal. I can pay him 400$ for these parts: Processor- AMD Athlon FX-55 Motherboard- Asus A8n SLI-Deluxe Power Supply- 650 watt Graphics Card- Nvidia 7900 GT Right now.. My computer has these parts: computer- Dell Dimension 9100 DirectX 9 Motherboard: Dell Dimension 9100 motherboard CPU- Intel Pentium 4. 3000 MHZ RAM- DDR2 533 DDR2 SDRAM- 512 Mb Graphics card- Radeon X600 256mb hypermemory HD- 70 gigabyte harddrive Now my question is: Will my computer work fine if i upgrade these parts to it? Do i need a bigger case? Please inform me with all the info. (I will most likely get more RAM) What other parts and stuff will I need for this new computer to work well? Thx! Alright to answer both of those questions.. I dont want to buy a whole new computer and spend more money. Im fine at what I'm at rite now. and joschmo. Thats what I thought. I probably would buy a whole new case. like 100 bucks. Not that big of a deal. Ok joschmo. Could you be SUPER helpful. And write down all the parts i should have instead? Like all the new parts I should buy and the ones I have in my computer right now.