I'm trying to build a pretty good decent gaming rig, that's good enough to play upcoming games like dead space, far cry 2, fallout 3, and other up coming blockbuster hits on at least medium resolution. So far I've picked out these parts and I need to know if the components are compatible with each other, also I wanna know if I'm getting my moneys worth (meaning no overkilling) I don't plan to overclock my system and I'm thinking about cross firing with another 4870 in the future or just get a 4870x2 when it gets cheaper. So please lemme know what you guys think, and if you think anything needs to be change.
Sorry, but the case/psu choice is a really, really bad choice. I know it's cheap at $60 with free shipping, but honestly i wouldn't use that power supply at all and the case is a microATX case that isn't compatible with your motherboard choice.
Don't skimp on your PSU, because it's one of the most important parts of your system's reliability. The savings from a cheaper PSU won't feel like very much if the power supply malfunctions and kills your system. If you want to do a 4870 crossfire, you need a power supply with four 6 pin connectors. I'd recommend the Corsair 750TX off the top of my head, although there's probably other options. Get something in the 650-750W range for crossfire. If that's too much, you may have to abandon the idea of a 4870 crossfire and get a PSU in the 500W range. You can find a list of reputable brands here: http://www.xtremesystems.org/forums/showthread.php?t=10...
You could also consider getting two 4850s in crossfire. They only require 1 power plug each so you could use a cheaper approximately 600W power supply (but still get a quality brand!), and in terms of raw bang for the buck I think they would be a good solution.
Also, your heatsink choice could be better. The XIGMATEK HDT-S1283 is the best value in terms of balancing price and performance. However, if you're not planning on overclocking at all, or even if you do want to do it a little bit, then there's not need to switch away from the stock cooler that comes with your CPU.
I saw that you were getting extra case fans, and I think that if you really want the best cooling you should find a case with 120mm fan holes.
If your gonna Crossfire HD4870 you will need a quality power supply with at least 600w and maybe more if you overclock your cpu. Plus you may want to look at X48 motherboards as they run both cards at 16x vs 8x in a p45. That way you wont bottleneck your Cards. Again dont buy a cheap power supply its that heart of your system...
also......some of you guys are telling me to ditch the heatsink and get a stock one. can anyone recommend me a good one? i also switched my mobo to GIGABYTE GA-EP43-DS3L LGA 775 Intel P43 ATX Intel Motherboard - Retail
Case isnt good, PSU is trash. Get a more powerful and better quality PSU or your comp will explode. I recommend cooler master real power if you plan to upgrade. Thing is 1250w for only $250, which is insane.
What monitor size are you using? If it is anything under a 24" then you can use any GPU from the 8800GT on up. My recommendation would be to get a 4850 1GB version. There is very little difference in performance from the 4850 to 4870 and running xfire or SLI (IMHO) is a waste of money especially if your goal is to stay below $900 for this build and you are not running an oversized monitor.
Save $100 on the GPU and put that towards a better/bigger PSU or an x38/48 based MOBO so if you decide to xfire in the future you will at least get the full available benefit.