I find it ironic that everyone who has posted a suggestion has offered up something I've had luck with all year long. I guess it depends of where you are and what the fish will attack.
For me, I had extreme success from spring to fall with a 7" pumkin seed lizard. Look for structure, stumps, and things like that. I can honestly say that everytime I go out, I fish an area that is no deeper than 2 feet, and the bass are there every time. Averageing from 3 to 5 lbs....Its been a great year...But I cant wait till the F*'kin spring...