Going diving some time this weekend

What should I take? My Tec40 with 3 cell bulb and NiMH's? Tec40 standard? I have a tec20, but that doesn't seem bright enough. I don't have a lot of lights, but suggest to me what I should try (in the KIND of lights, not necissarily the specific ones). Sure, it is going to be during daylight, but who cares? Lol. I wish I had some various colored LEDs such as purples, blues, cyans, and greens, then I could get attention. Hehe, that'd be cool. Is there any real need for a light during a daylight dive? I know it sure won't hurt, so I'll take it on the first dive anyway. I'm open to suggestions.

Spud