Lasers for Alignment?

[68Formula]

I'd like to start doing my own home alignments. I was thinking with the wide range of available lasers, one would come in handy. Plus It might be useful for other purposes like checking frame to subframe true-ness. Unfortunately there are so many choices, it's overwhelming.



So what features would be best for chassis layout and setting alignments? I know it's not a necessity to have one, but if it still helps, I'm sure I'll find plenty of other uses on house projects too.