Where to go for service (oil change, etc).

[f5fstop]

You can do any maintenance service on your vehicle. Again, just keep the receipts and keep a log. Just make sure to use the fluids recommended. The trans uses the new Dexron VI fluid, while the case uses Dexron III, the axles, I believe, use a synthetic type fluid.
The new brake fluid should last well up to 100K, as long as the system stays closed, and it is still being debated whether or not it ever requires flushing.