[bigbeardedbryan]

Probably at least a 2-4 limit, a couple 1-2 NL games, and if you're lucky, a 2-5 NL. There usually are games around the clock, but the place empties out significantly around 11 on weekends and probably 9:30-10 on weeknights. Given your options, you'd rather show up there on Thursday night if you wanted any reasonable variety of ring games.

edit: wait, if you aren't driving back that night, you might want to keep that Olean hotel room unless you plan on playing through the night and driving back sleepy. Unless you're taking your chances in Jamestown on the way back or something, that is.