Haha, no big deal man. The piece of plywood I bought was super thick and made of Birch. The guy at HD told me the plywood I chose was already sanded and intended to be finished. Either way, I had him cut it to the exact size of the top of the stand. So, in essence, all I did was raise the top of the stand 3/4" which was exactly what I was looking to do. It shouldn't have put any more or less stress on the tank than the stand would normally.
Anyway, even though I'm a new fish keeper I know enough about fish from my days spent fishing that I used a natural "river rock" gravel and a realistic looking background for my tank. I'm going to try and pick up some fake plants today and search the woods behind my house for a large rock and maybe some driftwood. I'd like to try live plants but I don't know if I'm ready for that just yet.