I have a pair of Martin Logan SL3 speaker for sale on the Audio Asylum Trader. Excellent speakers for anywhere near their price. My room is very similar in size to yours but my ceilings are only a little bit over 8'.
There is a link to the Sterophile review in the ad
http://www.audioasylumtrader.com/ca/listing/Speakers-Panel/Martin-Logan/SL3/electrostatic-speakers/139625