[newbe]

CPU: http://www.tigerdirect.com/applicati...?EdpNo=4240166 MOTHERBOARD: http://www.tigerdirect.com/applicati...&Sku=P450-9126 GRAPHICS CARD:...

CPU:
http://www.tigerdirect.com/applicati...?EdpNo=4240166

MOTHERBOARD:
http://www.tigerdirect.com/applicati...&Sku=P450-9126

GRAPHICS CARD:
http://www.newegg.com/Product/Produc...82E16814102770

MEMORY/RAM:
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4173219&CatId=3361(x3)

HARD DRIVE:
http://www.tigerdirect.com/applicati...ku=TSD-1000AS2

COMPUTER CASE + POWER SUPPLY:
http://www.tigerdirect.com/applicati...105&CatId=1845

DVD BURNER:
http://www.tigerdirect.com/applicati...24382&CatId=89

OPERATING SYSTEM:
http://www.newegg.com/Product/Produc...82E16832116488

This is my first time making a computer. If my math is correct that should cost around 1100 and give me a Quad core 2.66 processor with 6GB DDR3 Ram, 1TB hard drive, and a relatively good graphics card.

My questions are as follows;
Do all of these components work together or is there something that might work better?
Am I missing anything?
And is this a better deal then choosing
http://www.bestbuy.com/site/olspage....=1218046802234
and simply upgrading it to my needs? Though the two are similar ($1100 is about as high as I can afford) I noticed that the Dell Studio XPS lacks a few key things which are 2G DDR3Ram, 380GB Hard Drive Space, and most importantly the customer reviews state that it only has a 360W Power Supply, which is what really scares me.

Any help would be appreciated!