Just built an HTPC/Gaming rig, need your advise

Hey guys, this is my first post, ive been doing a lot of research and price comparisons, and here is what I have come up with for my 1st build.

OCZ OCZ3P16004GK 4GB PC3-12800+ (DDR3-1600+) DDR3 Memory Retail
http://www.zipzoomfly.com/jsp/Prod [...] e=10008207

WESTERN DIGITAL WD1001FALS Caviar Black 1TB SATA 7200 RPM 32MB
http://www.zipzoomfly.com/jsp/Prod [...] e=10008824

ASUS M4A78T-E AMD 790GX AM3
http://www.zipzoomfly.com/jsp/Prod [...] e=10010097

AMD HDX945WFGIBOX Phenom II X4 3.00 GHz
http://www.zipzoomfly.com/jsp/Prod [...] e=10010872

THERMALTAKE VJ400G1N2Z Mid Tower Case
http://www.zipzoomfly.com/jsp/Prod [...] e=10009726

LITEON iHOS104-06 4X SATA Blu-Ray Reader
http://www.zipzoomfly.com/jsp/Prod [...] t=celebros

HIS H489F1GP Radeon HD 4890 1GB
http://www.zipzoomfly.com/jsp/Prod [...] t=celebros

CORSAIR CMPSU-750TX TX 750W
http://www.zipzoomfly.com/jsp/Prod [...] t=celebros

All this together came to $1000, then I got $200 in bing cashback, and also another $70 or so in mail in rebates. So total price was about $730 with free shipping. My goal is to have this be my HTPC, im going to hook it up to my 55" Samsung 120hz LCD TV (LN55B640), and play games/movies/internet TV on it.

Are there any parts that dont look right, or that I should have gotten instead?
Right now im on the look out for a wireless keyboard and mouse, but im not sure which to get. This is going to be for gaming, etc.. so does anyone have any suggestions for a good combo? Id like to keep the $ down as much as possible, but not take big hit on performance.

Thanks for the help,
red

Logitech makes some pretty good wireless combos. The best ones aren't exactly affordable though. I'd just make sure whatever combo you do get, that it has a nice RF transmitter and receiver. I was using a wireless desktop keyboard/mouse for an HTPC I did a few years back, but the range was terrible on it. Ended up giving that combo to my sister and upgrading to a combo with better range.

the best wireless is in the microsoft stable ar $$$ but logitec is at a good range