Thanks for the plug Ryan, and I re-suggest it for you Hemble to go to
www.FFURG.com to find out all the detailed tutorials you could want and of course you can always ask there and here for help on anything you can't find.
That said, the Star Wars line tends to be a mix-match of things that genuinely match up well and things that don't.
For instance, the pack-in TIE Pilot for the TIE Bomber (with bendable knees) can have those legs transplanted to an IMperial Officer (The POTJ one). The fit is flawless and it adds poseability to your officer figs...
Another one that's pretty much a straight fit is that the Saga Endor Rebel's whole upper body can be transplanted to the POTF2 Endor Rebel's legs. Voila, instant neutral stance Endor Rebel but who has some poseability to the arms. Not too bad... The only mod is cutting the post I believe on the lower torso.
So that's some ideas of things that work, but I'd say that a bit better than half of the time the parts DON'T fit exact and you maybe have some reworking to do for it to really flesh out right. It's a lot of trial and error but as you get into the hobby you get a better grasp of what works, techniques to MAKE things work, etc...
