I didn't have much woodworking experience when my brother asked if I could make his new kitchen for him. A great learning experience that took a long time to do.
Here is my list of essential tools:
Table saw
router and preferably router table
circular saw and straight edge (for cutting sheets down to manageable size)
Keg pocket screw kit
a hand plane (for truing up face frames)
and of course an orbital sander
drill
If you have most of these tools you can do a very respectable job, if you more thats awesome too but it doesn't take a ton of tools to do the job at a hobbiest's pace.