I have a 775 built machine with an older mobo, here are my current specs
Asus P5ND2 SE
Intel E4700 2.6ghz OCed to 3.0 ghz
Palit GTS 450 1gb
4gb Ram 667 mhz ram
Zalman 9700 heatsink
Currently I mainly play starcraft and fallout new vegas and I'm generally fine with both until action starts, on Starcraft I play on very high as opposed to ultra and it will stutter step through any big engagements unless I turn graphics all the way down to low. I tried to OC my CPU some more but at 3.1ghz at 100% load my temp is about 64c. And I can make it about 10 minutes into a game before it will freeze the entire comp. So I'm looking to upgrade.
But I'm wondering what would be the best path for me, I have a budget around $800 and really the only game I'll be playing in a year will still be starcraft II, but I'll also be plaiying metro, diablo 3 and star wars: tor. Should I go all out and get an I7, though I'm worried at how long the 1366 boards will be around, or should I go 1156 though already obsolete or go AM3 and get a new Hexacore or Phenom II x4?
With a budget of $800 rules out LGA1366 unless you are sticking to your current GPU. Maybe the best option is to wait for the Sandy bridge release in 1qt of next year. If you are not waiting a p55 lga1156 board (better SLI solution than AMD) with I5 750/60 would be my choice looking at that you already have a nvidia card.
Neither of those platforms has any life left in terms of fresh releases.. However, they have enough performance to carry you through another 3+ years before you start feeling itchy on upgrading again.. If you are going to be using your system for gaming entirely, I'll recommend going for an i5 760 setup..
Hmm... thanks for the replies, Sandy Bridge eh, just researched it and its an entire new socket, Am I being unrealistic thinking a socket will be good for 3+ years?
unfortunately you may be unrealistic. LGA775 had a good run though. There is a possiblity AM3+ (for the new AMD chips) will still be around then since AMD trying to keep the same sockets. Its an unknown though. Only time will tell (3 years)