Need some help picking out parts for new computer

I currently am making a list of parts I’m going to be ordering in the next few days and need some help with picking out some good parts or maybe someone knows a better combination ? I’m a little new at building computers so was hoping someone could help me out. I have a budget of around $500 not including the case or windows 7. Mostly will be used for developing video games and a little bit of gaming. So it needs to be able to handle a lot of applications running at once and should be very fast.
Case
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147144&nm_mc=EMC-IGNEFL121311&cm_mmc=EMC-IGNEFL121311-_-EMC-121311-Index-_-ComputerCases-_-11147144-L015A
8 gigs of ram
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145345
10,000 rpm harddrive
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136744&nm_mc=EMC-IGNEFL010512&cm_mmc=EMC-IGNEFL010512-_-EMC-010512-Index-_-InternalHardDrives-_-22136744-L02D
graphics card
http://www.newegg.com/Product/Product.aspx?Item=14-130-572&SortField=0&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=-1&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Page=4#scrollFullInfo
Still not sure what kind of motherboard to go with but it needs to be micro ATX / ATX. Also not sure if I should go with amd or intel ? Or exactly how powerful of a power supply that I need. Cheers.
I’ve coded the link(s) for you this time – if you don’t know how to do it, please check the sticky thread in the helpdesk section.
ÃzN_Über Leet
Answer #1
http://www.newegg.com/Product/ComboBundleDetails.aspx?ItemList=Combo.791295