DFI LANParty UT X58-T3eH8
I've got a gigabyte ud5 and have no complaints.
The EVGA X58 Micro, LE and Classified are the best i7 920 boards available bar none.
Gigabyte after that!
If looking to go for a sick clock, The EVGA classified, the DFI board and the Gigabyte board mentioned so far are the ONLY ones I have found that will not "board limit" you. (From reviews) I can tell you right now the LE and the E758 boards while great, are not the "best available."
E758 had I to do it over again probably would not buy it. I am on a bench station and STILL needed needle nose pliers to hook up the CPU fan header and the 8 pin CPU power cable. The HUGE heatinsks on the chipset and the VRMs are pretty ineffective as well. Going to rip them off and see if I can fix it though
I have not tried playing with this one bios setting that may help the E758 clock past 220, because I can find no information on what it does.
Granted ALL the board mentioned will all push a i7 920 as far as it will stably go on air.
With 'better' methods of cooling and for benching, only the 3 I listed will get it done.
ASUS Rampage 2 extreme may or may not. Seen some people have issues past 220 BCLK, others scoot right past it on that board. I would pick up an R2E before I got another E758.
Oh yah.. E758 (may carry over to other boards) have memory seating issues as well. You will see a lot of F3-F6 reboot and 4E post codes on google. At first I thought it was a BIOS update that fixed it in retrospect it was probably me pushing the memory in hard enough that I was worried the heatspreaders would pop off
It is a strong board though I would definitely not say it is a "BAD" board, but at $300 for a new one, I would look elsewhere.