Really recommend getting ICMTrainer (it's free) to practice spots like this. You can input these type situations into it as well, or use the online calculator at HRC (
http://www.holdemresources.net/nashi...bb=400&ante=25).
You do have to be pretty tight here but it looks like you can call 88. If the SB is pushing less than any 2 cards though you might need to be a bit tighter.