I got into reef aquariums about 8 years ago. It's a fun, rewarding albeit expensive hobby. Patience is required, so if you don't have it, turn back now!
I had one acrylic tank and hated it; I felt that it scratched more easily than glass. On the positive side, acrylic is lighter, clearer and as was mentioned earlier, you can drill it anywhere you want for bulkheads. I just always preferred the glass tanks- you can get them with low iron glass that is really clear, and unless it is tempered you can still drill the glass to place bulkheads where you want. (Most tanks have tempered bottom glass only, but you can add an overflow to the back glass)
lareefclub.com was always a good source of local information. Reefcentral is like the TD of reefkeeping. Nano-reef forums has good information as well.
Join the local club and you can usually get frags to begin your reef for next to nothing- good luck