Here's my favourite Wasteland guide:
http://user.tninet.se/~jyg699a/wasteland.html
Incidentally, I melee-kill just about everything I fight in Wasteland and don't bother training any combat skills other than Brawling and Energy Weapon (for that enemy in Base Cochise that you can't melee-kill due to what I believe is a bug).
And I make sure that my entire party learns Doctor once my IQ hits 21: Sure it's cheap as Hell, but it makes life much easier.