Yeah, getting an A1200 is always a good start!
And if you can find maybe a 030 accelerator to go with it, then you're ready to explore some more!
That was how i started 2 years ago... with a stock CD32, got an SX-1 for it, then got a A1230...and today, well check signature, currently without my Mediator (allows PCI cards in Amiga)
And if you become enough crazy with your A1200, then you will be amazed with the expansion possibilities!
Good luck!
Ebay is a good place to find bargains!
And on amibench the good listings are very quick gone!
There's some hawks watching that page me thinks..
