MSI Intel X58 Pro-E MOBO with i7-920?

Hello and thank you in advance for helping. I am very interested going with the MSI Intel X58 Pro-E as my MOBO. This will be paired up with the i7-920 that I have running as of now. The 920 is currently running on some Dell mini-ATX MOBO, which I like to replace ASAP. My first question is, should I invest in this MOBO? I have read many good things about it. Also, I am running a BFG GTX295 right now. Would this MOBO "support" Quad GPU if I choose to go with a second GTX295 in 2-way SLi one day? This card only occupies 1 16x PCI-E slot. Finally, does this MOBO, in any way, increase the performance, regardless the fact that I will not OC the 920? I would like to purchase something solid, perfer standard ATX size, X58 LGA1366 MOBO with 6 RAM slots. In addition, it has to be purchased from Best Buy, simply because I have a $200.00 store credit from them. I also like to know which of the many versions of the Artic thermal compounds should I get with this setup. Any suggestions and comments will sure be appreciated. Thanks again... Deadcell