I think the Intel & Abit are the only ones.
The Intel chip for it is supposed to be alot more than other solutions, that's why most of the 865PE (lower end) don't have it.
Also, there are multiple IS7 boards from Abit. Only the IS7-G has the Gigabit CSA. I'm tempted to buy the IC7-G, but wish it didn't have the extra RAID stuff, etc since I won't use it. Well, maybe the built in RAID from the ICH5R, but not the extra RAID they added.