Tie rod as in tie rod end, the end that connects the rod to the knuckle? Not that difficult. Need to remove the tie rod stud from the steering knuckle and then unscrew it from the rod. The stut needs to be pressed out with a hand puller or driven out with a hammer. Make sure you keep the new total rod length the same as the old total rod as this adjustment controls steering wheel toe in.
If you mean replacing the complete rod, the other end screws into the steering rack (not to bad of job to replace).
As to the wheel cylinders, are these the brake drums, rotors (easy job) or the actual brake cylinder or caliper that moves the shoes or pads (not to hard)?
Suggest downloading whatever info you can find on the steering system and brake systems for Camry at the link below. The AutoZone website may have some info, also do a TN history search on the subject as both have come up before.
If taking apart the brake system to get at the cylinder for the first time, suggest you get some kind of photo or drawing of where all the springs and other parts go. The drums or rotors are much simpler to remove.
All of these jobs are common and pretty generic in nature between models of cars. A Google search will also turn up a lot of info.
http://oregonstate.edu/~tongt/camry