Seneca (USA) has the lowest limits ($5), but has only CSM games during the day. They open up some shoe games ($10), in the evening. 8 decks, ~75% pen, S17, DOA, DAS, SP3 (except aces), no surrender.
Casino Niagara (Canada) has some lower limit games at all hours.
Fallsview (Canada) is the nicest of the three, but has the highest limits. $15 minimum at a CSM is the lowest you will find. Lowest shoe game is $25 (ASM) and sometimes even $50.
Both are 8 decks, ~75% pen, S17, DOA, DAS, SP4 (except aces), no surrender.
The above all refers to conditions out on the floor. I don't know what the conditions are in the high limit rooms.