Sell towers for bookshelves?


I'm currently running a pair of NHT 2.5i towers with a McCormack DNA 0.5 deluxe power amp and a Peachtree Decco as pre-amp/DAC (connected to cpu via usb). I may be moving into a smaller apartment within the next few months, and I was considering selling my towers for a pair of higher end bookshelf speakers (used most likely). I'm sure I could afford bookshelves with greater accuracy than my NHTs.
Does anybody have any input on this considering my amplification setup (which I would probably prefer not to have to change). Any suggestions for used bookshelf speakers? Thanks!
105sixteen
Almost forgot, I don't really have much of a price range because I haven't though about this too much yet, but I would probably look to spend up to $600 or $700.
The only reason I sold my Linn Katans was because I got the Linn Majik 140's. The Katans sound great and you can go aktiv in the future. Happy listening.
Not sure there is any advantage in selling towers to get bookshelves - they tend to take up the same floorspace plus you need stands. Unless you think you will have too much bottom end with the towers in a smaller space?

There are lots of choices to go with your McCormack (100wpc?). For 6-700 used (+ stands) you are unlikely to beat the NHT considerably - perhaps just something different. I also had Katans, sold them then bought some again. They would be in budget. Maybe Epos M16's. Most of the good stuff will cost a little more used (around $1k).
Thanks for the feedback so far. I'm just sort of feeling around as I'm curious as to how much I would have to spend for a significant upgrade in sound quality in the speaker department.
Meiwan, yes I do believe that the towers may have too much botom end (due to their 8" woofers) in a smaller place, which is part of the reason I was thinking about bookshelves. I will not replace the towers until I can afford something of significantly higher quality, however. So you are saying that for the increase I'm looking for I would be looking to spend around $1,000? or more? Thanks for this help.