Need help finding parts for my PC

Hi, I'm hoping to build my next computer and I'm not sure what mobo, hard drive, disk drive, etc. to use. Specs (so far) are as follows:
Case: I'm hoping to use the case from my old HP Pavilion a6542p desktop
Processor: I have looked into the AMD Phenom II x6 1090t Black Edition processor, if I can't get that for around $200 I'll look into the 1055t
Video Card: AMD Radeon HD 6850 RAM: Crucial CT2KIT51264BA1339 RAM Module - 8 GB (2 x 4 GB) - DDR3 SDRAM
Motherboard: Unsure
Hard Drive: Unsure, have one already but need another
Disk Drive: It has one already, not sure what, but would like to use that
Power Supply: Unsure, I think the video card requires 500 watts so I would like 550 to be safe
Side notes: I want a 1TB hard drive, and would like to have this one plus the old one for family's music, pics, etc. I also would like to make a DIY clear wall and put some red/blue cold cathodes inside

Can you help me out? Ask for more info, I'll try my best to help out with other information. (First build, by the way) Thanks! (is this the right area to post this?)

Hello TheQuack45;

Hop on over into the Systems -New Build section of the forums.

If you fill out the form in *How To Ask For New Build Advice* you'll answer all the standard questions that help things get started.