The basic rule of thumb is that there are no chips lower than $1 in Vegas. So the lowest games in NL and Limit will have $1/$2 blinds (which is called 2/4 for limit and 1/2 for NL).
There is also an interesting game at O'Shea's called 1-5 spread limit with $1/$2 blinds and max bet of $5 at any time.
If you have any holdem capability at all, you can bring $100 to a 2/4 limit game and go for hours.
If you want to play in NL tourneys whether SnG or MTT, be very careful about the blind structure. Some of these games are very fast and you can burn through your bankroll.
Here is a good resource:
http://www.allvegaspoker.com/