Kind of an off question, but I'm searching for a 60V CT (30-0-30)
transformer (1-2A is fine) for an amplifier I've been building. Would
I be better off just shelling out the cash and getting one, or is it
realtively easy to build your own (there are all sorts of torridial
cores avaliable at a local store, all for under 5$)

Steve-

You would need a large, tape-wound toroidal core to operate at the power
frequency. A ferrite core is not likely to be adequate for your needs.

If I were trying to make my own transformer, I'd look for a junker that had the
desired power rating (120 watts in your case), and replace the secondary. To
be sure there is enough room to wind the new secondary, perhaps a higher power
transformer would give some margin.

You can wind a test secondary, measure voltage, and calculate the required
number of turns to get the voltage you want. Give it a little extra to account
for IR drop.

To ensure an exact center tap, you might wind two pieces of wire at once
(bifilar winding) and connect them in series-aiding.

Good luck.

Fred