Frederick's of Hollywood, while it does not have steel-boned corsets, has a pretty nice selection, especially considering costs. I do not think I would ever invest in a "real" corset as I have nothing that particularly needs the additional support, and I like breathing.
I wore a Frederick's corset to my senior prom. Still have it, though the plastic boning is somewhat warped and with my small bust, it never fit very well. I really wish they were more comfortable because I'd totally rock one on a regular basis! I am envisioning some really awesome outfits with well-fitted straight-leg jeans, tailored t-shirts, and a "casual" corset (I'm sure I could make one).
I just wanted to say a quick thanks to all who have commented this week on my journal. I really appreciate the words of support. This is the part of the MDA community that I enjoy (chatty journals and ASDF thread). I am in a pleasant mood today despite some anxiety relating to nothing in particular, and part of that is due to the regular amusement from you all.