After having mounted a couple of shows here are a few observations that make sense if you expect to continue to do so:
Cut your own mats! There is nothing like the liberation of being able to size your prints based on the content of the print rather than the size of the paper and pre-cut window. So, invest in a good cutter. I have the Logan Simplex 750, and it's terrific, but there are lots of other good ones.
Get a dry-mount press. Yeah, I know the conservators will wag their hoary fingers at you decades after your demise because they may really have to work to separate your print from the time ravaged mount board....but will you really give a flying squirrel at that point?? Hey...you're famous...let'em eat cake!
STAY AWAY FROM LIGHT IMPRESSIONS!!....unless money is no object, they are waaaay too expensive. There are scores of much less costly alternatives out there. Redi-mat is my go-to site for excellent blank mat and mount board at a price way, way below LI, but there are lots of others as well.
Get yourself a Logan dual point driver if you use wooden frames. It's much less expensive (less than $50) than other ones, and you can use flexi-points or rigid ones.
I hesitate to recommend a frame source because there are so many and one's taste is a unique factor. I re-use frames for shows if I'm displaying new work, and hence only worry about an initial investment. If your work sells, then you've probably factored in the cost of the frame, so it's a zero sum to replace.
If you can show enough prints to offer a variety, some should be smaller and really affordable. In my first show, an 8x10 for $75 was the only other print to sell at the opening. A larger print sold as well, but that was it for a while. Had I hung more of the $75 prints, I might have recovered the cost of the show more quickly.
Invest in show-cards that are really well designed and printed, and send one to every address on the mailing list the gallery should provide. That way, not only will photography fans show up, but perhaps other gallerists will as well if there are some in the area.
DO NOT hang a show in January!! No one has a dime left to spend after Christmas, so you're wasting your time. An audience may show up, but their pockets are empty.
Do not hold your breath! In this economy, your breath may be worth more than your photographs!