. . . All of thh above recommendations are good. I'd say make a list (alphabetically) of all the lights named. The one closest to the top is the one to buy.
(oh, and if you want advice on which light is the best, you can do the same thing with the screennames. the person closest to the top has a clue)
If you don;t have time to do the above, then Just go buy an A2 and thank Carrot later.
oh, and you might also consider getting a G2, E2e/l, X5, 6P, SL4PP, U2, Gladius, HID(your choice) Mag85 (and/or ROP), and a fistful of keychain lights (Orb, anyone?)
I'll bet, that if you;re still posting here in a week, then you'll have at least four of the above within six months.