Joshr,
In my opinion, Energy Veritas speakers are some of the best speakers around. Nothing short of excellent. If the speakers are truely lightly used then, $1200 is a good price.
The 2.3i's would go pretty low on their own, down to 35hz or close to that I think. You'll be fine for music, HT maybe not. But since you already have a sub.....no problems there.
The best thing to do however, is to go listen to the Veritas and a few other speakers within your budget, that way you will know you're making the right decision. To really make the Veritas shine, make sure you have good components as they are pretty revealing speakers in my opinion (but in a good way
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).
I actually have the 2.2i in a fairly big room also. 20X25 with 20 foot ceilings and they have no problems pressurizing that room with sound.
If you have any other questions, don't be afraid to ask. There are a lot of people on this site with a lot good advice and experience.
Good luck