My opinion... power supply should be at least 850watts... if your GeForece GTS 250 does not require a separate power line you may be OK with 750w, but if you ever decide to go to Premiere Pro CS5 and a CUDA card for hardware MPE, you will also want to go to a GTX 470 (or similar) which requires separate power from the supply, and uses a LOT of power
Be careful with CPU coolers and your 12GB of RAM which will occupy all DIMM slots on that Gigabyte motherboard.
The 92mm fan seems small as most better coolers use 120mm. Have you confirmed that the cooler you chose will clear the ram?
You did not mention a model of Coolermaster you chose.
This is new stuff for me, so thanks for the thoughts.
This is the cooler I was thinking about...http://www.newegg.com/Product/Product.aspx?Item=N82E16835103057&Tpk=COOLER%20MASTER%20Inte l%20Core%20i7%20compatible%20Hyper%2092mm (Hyper N 520 RR 920 N520 GP 92mm sleeve CPU cooler). I was thinking the 92mm because it was smaller in fact. How would I confirm it would fit with the RAM? Someone else recommended the "hyper 212" from Cooler MAster (http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065&cm_re=hyper212-_-35-103-06 5-_-Product). Maybe that is a better choice for $10 more?
Here is the Video card (http://www.newegg.com/Product/Product.aspx?Item=N82E16814150478&Tpk=GS250XZSL4%20GeForce%2 0GTS%20250%201GB). It simply states minimum of 400 watt power supply.
Keep the thoughts coming. I would like to get it right the first time. I don;t intent to overclock (at least not right away) so maybe the cooler isn't even needed?
This case (http://www.newegg.com/Product/Product.aspx?Item=N82E16811517004&Tpk=AZZA%20Solano%201000%2 0Black) has 4 fans built into it.
This one (http://www.newegg.com/Product/Product.aspx?Item=N82E16811124121&Tpk=ENERMAX%20Uber%20Chakr a%20ECA5001B%20Black%20Aluminum) only one. Maybe that is reason enough to go with the first case? Both full ATX towers.
For the cooler, have a look at Noctua, Prolimatech and ThermalRight. Just start reading here: http://hardocp.com/reviews/cooling/
For PSU, look here: eXtreme Power Supply Calculator Pro v2.5 and get the Pro version. Enter all your components, set CPU load to 100% and capacitor aging to 30%, calculate and add 10 - 15% for safety.
If you dont plan to overclock and you buy the retail 930 then then supplied fan will be ok. When choosing a case go for the largest case with good airflow thats with your budget.
installing an aftermarket cooler in your new build will save hassle if you decide to OC in the future.