Good luck with your new hobbie Weegie, there is nothing more satisfying than making your own furniture. I have made lots around our house including all our kitchen units, fire surround, AV gear cabinets and all made in my garage.
If you decide buy some power tools i highly recommend you purchase a table saw which if used right can save you alot of time and is great for cutting tenons, cross halving and butt joints. Also a cheap router is a must as a nicely finished edge detail makes for a much more professional finish, then if you really want to push the boat out i find my biscuit cutter very useful.

Another tip is if you are repeating a process several times put some effort into making a jig, that way everything enRAB up the same every time.

I got lots of inspiration from the new yankie workshop on discovery its worth a watch.

I look forward to seeing your results