I personally am a big fan of ASUS and Gigabyte motherboards which i've used exclusively for the past 4 years or so. I'm also strictly using AMDs, primarily because they tend to be quite a bit less expensive than intel and perform just as well.

If you're wanting to save money i'd consider going a few generations back on video card and getting maybe a 7900 GT or dual them up which you can do for the same price as one 8800. I personally have been running an overclocked 7800GT with everything maxed out and have absolutely zero complaints.

Definately shop around for the best prices, but i'll go ahead and recommend newegg because I have had nothing but positive experiences with them. I do all of my computer related shopping on newegg with the exception of LCDs. Those I get from Tigerdirect because they have the best dead pixel policy around and also very competitive prices. Also if you're a little adventurous you can check out the [H]ardOCP buy/sell forums which i've also used quite a bit in the past (http://www.hardforum.com/forumdisplay.php?f=17). On a side note, thier hardware forums are an EXCELLENT place to go for hardware related advice.