What would be a good general purpuse light? I am going to Truk in March and while I am not going to do any major wreck penetration, I'm sure I will do some poking around and would like to have a decent light. Also, my wife and I usually do one or two dive vacations during the year and a night dive or two is usually part of that. Can anyone recommend a good light that would work for my purposes? It seems most on LP are in the $40-$150 range and I have no problem with those prices. Thanks in advance for any advice!