I'm very new to jQuery (two weeks) so maybe this should be in getting started.
What are the best plugins for forms validation?
So far I've had a cursory look at 3.
jFormer (Looks very attractive since it develops the form for you as well as does validation but does it work as advertised?)
I should explain that the forms I'm developing will have quite a few checkbox and radio groups and will require Ajax (which I'm also slowly getting to grips with)
All suggestions welcome.