[FrankJ]

What to order depends a lot on your other resources and what you already have.
Obviously these are my opinions. Others will agree or disagree. YMMV
Tools:
The fluke meter is well priced and every one needs a good meter.
The gear wrench set is well priced.
The complete tool set is a little pricey, but worth it if you are short on had tools.
The crimping tool is the right one for the battery connector, but overpriced at 200 point compared to other options. We use a harbor freight hydraulic one.

Parts:
gear motors would be at the top of my list
speed controllers would be next. Having at least one Talon would let your programmers learn canbus.
encoders are nice to have. As well as other electrical bits.
It is good to have spares of the PCM, PDB, & VRM. But maybe for a later day.
Camera & servo are also good to have.
I would stay away from the little mechanical bits. They are inexpensive & easy to order from Vex & AM.