Hello, I would like to build a cpu to be used for basic computing, internet, HD DVD/Blu-ray, some gaming...I am not interested in OC right now as I am just learning. However, I want to build the best cpu I can for $2000. I have some parts picked out but I am open to expert opinions on what would be the best for my budget and use. Thanks. OK, here is what I have so far, I am missing a PS as I am not sure what size...I know I would like a modular PS if possible. Update COOLER MASTER COSMOS 1000 RC-1000-KSN1-GP Black/ Silver Steel ATX Full Tower Computer Case - Retail Model #: RC-1000-KSN1-GP Item #: N82E16811119138 Return Policy: Standard Return Policy In Stock Mail-in Rebate $199.99 -$25.00 Instant $174.99 Update ASUS P5K-E LGA 775 Intel P35 ATX Intel Motherboard - Retail Model #: P5K-E Item #: N82E16813131225 Return Policy: Limited 30-Day Return Policy In Stock $139.99 $139.99 Update BFG Tech BFGE88512GTOCE GeForce 8800GT 512MB 256-bit GDDR3 PCI Express 2.0 HDCP Ready SLI Supported Video Card - Retail Model #: BFGE88512GTOCE Item #: N82E16814143118 Return Policy: Standard Return Policy In Stock $279.99 $279.99 Update Intel Core 2 Duo E6850 Conroe 3.0GHz LGA 775 65W Dual-Core Processor Model BX80557E6850 - Retail Model #: BX80557E6850 Item #: N82E16819115028 Return Policy: Processors (CPUs) Return Policy In Stock $279.99 $279.99 Update CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model TWIN2X2048-6400C4 - Retail Model #: TWIN2X2048-6400C4 Item #: N82E16820145034 Return Policy: Memory (Modules, USB) Return Policy In Stock Mail-in Rebate $87.00 -$10.00 Instant $77.00 Update Western Digital Caviar SE16 WD5000AAKS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM Model #: WD5000AAKS Item #: N82E16822136073 Return Policy: Limited 30-Day Return Policy In Stock $104.99 $104.99 Update LG Blu-ray/HD DVD-ROM & 16X DVD±R DVD Burner Black SATA Model GGC-H20L - Retail Model #: GGC-H20L Item #: N82E16827136133 Return Policy: Limited Non-Refundable 30-Day Return Policy In Stock $299.99 I have a few questions that may sound dumb... 1. What is "OEM" VISTA? Why are the OEM cheaper? 2. Should I go with the 64bit VISTA? 64bit is the future, right? YES, I want to use VISTA...PLEASE do not make fun of me, I know most think everything MS makes is trash but I own stock in MS and I have made plenty of money off MS to buy their garbage...Gotta support the cause! 3. I need advice on a power supply and any other advice is welcome as well.