Hi,
I've been searching the net but don't seem to be able to find any IC with SPI that can control servo motors.. Anybody have some suggestions? Preferably without too much external requirements like resistors or crystals etc..
Help? 
You want one control chip per servo motor? Won't SPI use a lot of pins since each chip would need it's own SS line. Perhaps you should look into TWI/I2C.
In either case the ATtiny 25/45/85 family of 8-pin microprocessors could do the work.
Probably about 4-6 servos per chip. Had hoped to find something I didn't need to program, will be enough programming with this project. But suspect I will have to settle for some microchip.. I guess that would be ok, can use it to measure stuff too.. More pins saved