Here are two posts i made in two other threads about floyds. Once you are familiar with the process of setting up a floyd, time is the only hindering factor. It usually takes me about 2 hours to set mine up, 3 at most. If you are changing gauge, then it will probably take closer to 3 hours. I say save your money...you can use almost anything to block the bridge...i use a 9V batter occasionally...whatever fits. Good luck.
QUOTE (JKMV14 @ Oct 16 2009, 01:18 AM)

With the trem, all you have to do is block the bridge (fix it so that it is level even when the strings are off. a small block of wood, a stack of cards, or something like that would work). Then you just put the new strings on and tune them to whatever tuning you want. Next your going to want to tighten the screws in the back just a little bit (maybe a few 1/4 turns each). Then unblock the trem and it will most likely get pulled by the strings a little (or a lot). Next all it is is just a balancing act. Tighten the scews in the back a little bit (not too much). Then tune the strings back. Just keep doing that until the bridge is level and the strings are perfectly in tune (or as close as you can get it).
Once you get that done, it will be time for the fun part: intonation!

QUOTE (JKMV14 @ Sep 25 2009, 07:11 AM)

Intonation really isn't that complicated. It is a little bit harder with a trem, but still not that hard. Here is a few threads that might help you:
http://www.ultimate-guitar.com/forum/showthread.php?t=602241http://www.ultimate-guitar.com/forum/showthread.php?t=614226Basically all you have to do is, once the new strings are on and the bridge is level and the strings are in-tune (and b4 you lock the nut), you match the 12th fret harmonic to the 12th fret note. If the notes don't match, then you loosen the string and unscrew the small allen screw underneath the string with a 2.5 mm allen wrench (once you tune it back, the other strings will go back to their original state).
If the fretted note is sharper, pull the saddle back (make string longer); If it is flatter, then push the saddle in (make the string shorter). Once you make the adjustment and tighten the screw, tune the string back to what you want and tune the rest of the strings (which should be pretty close to what you had before). Then just start over on the next string. The instructions in the second thread i posted are probably better than mine, but hopefully it makes sense.
Once the strings are intonated, just tune them one last time, lock the nut, fine tune, and you are ready to rock 'n' roll!
Why take your guitar to a shop if it is something you can easily learn to do yourself?? It saves money and time. I had to take mine up to get set-up a few months ago (problem with it i didn't know how to fix). It took like 4-5 weeks for them to set it up. It didn't cost me much, but it is something i could have had done in a few hours. So i highly recommend you learn to do it yourself. You have all the tools to help you.
Good Luck.