I just bought the non-synthesized version of the 9CAP. You can always upgrade and add the synthesizer to your 9CAP if you see the need for it sometime down the road. Another nice thing, the 9CAP doesn't use traditional crystals in the transmitter. It has a box that unplugs. You can quickly, and legally, change the frequency by switching these modules out.

Here is what I am talking about:
[link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXH256**&P=7]Futaba tx module[/link]


Synthesizer sold seperately:

[link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXHKB1&P=7]Futaba synthesizer[/link]