They would all work fine, and yes, you could crossfire on it. Any X58 motherboard with two or more X16 slots can crossfire or SLI. EVGA only makes nvidia cards so they market it as an SLI board.
However, if I was you I would much rather go with an ASUS or Gigabyte. best you can do but it's a lot more costly.
Sure, as long as it's a better fan. There's the Scythe ultra kaze for $10 plus $3 shipping. Its max CFM is 133, the hyper's standard is 73CFM. It is a lot louder and it's thicker as well, but your 932 can andle the space. The cooler master's 90CFM R4 is also a good alternative.