http://www.telavivlimo.com/rates.html

I've used them on 3 or so trips with ok to very good results. Tolls/tips extra. You do have to call when you arrive, but they are waiting in some "holding" area. On the "basic" rate I've gotten a standard car, a luxury car, a station wagon, and a limo. It looks like if you want an actual limo, its $90.