The main reason to get a table saw, besides it's being one of the safest power tools in the shop (you always know where the blade is; contrast to radial arm saw: one of the most dangerous), is because you want repeatable cuts and (at the higher end, e.g. large mass and trunnions to absorb any vibration) glass smooth surfaces that don't need cleanup. Or you want to do dados, tenons, or other cuts enough times that again hand tools aren't going to "cut it" (pun intended).
Given your needs that's overkill... I agree with the many suggestions for a Kreig jig and a circular saw (I recommend Porter Cable) as being a very flexible setup, and you can get out your hand planes if you need to clean up the cut. I use all of these tools, and while I love a good table saw and use it... it's overkill if you only have a couple dozen cuts to make in your career.
Disclaimer: I'm a hobbyist, not a professional woodworker. Most professional woodwork these days is CNC... ;-).