[quote=@mattmanganon]
[@Lurking Krog] This is very much a Multiclassing system. Pureclassing isn't the best, but it's not bad. So, absolutely feel free to multi-class. Hell, one character i theorycrafted had bits from 3 primary classes.
[/quote]

[@Lurking Krog] 

I will expand on this a little: in addition to considering base class combos, it's worth looking into Prestige Classes you might want since many of those have both really good talent trees and qualifications that are pretty strict. Some are more forgiving towards class selection than others, depending on how efficiently you want to access them. For example, Elite Trooper really wants you to be either Jedi or Soldier 7 with a few specific feat choices if you want it ASAP, but Ace Pilot is just "have a feat and a skill".

I'd recommend at least considering Elite Trooper, since it has the "Greater Weapon Focus/Specialization/Combat Feat" talents that damage dealers want, or Gunslinger, for trick shots, but there's other stuff you could look at.