Subject: RE: What should I sell my road bike for?
Did a quick search on your bike. It retails for $1400 on specialized's web site...so regardless of what you paid...that's where you likely need to start from.
61cm size is a bit tricky. There isn't a high demand for a frame that big, but at the same time, I doubt there is a huge supply of new or used bikes in that size either. That may or may not work in your favor as far as asking price. In any case, I would say a fair price for used would be about $800. Given that retail is $1400...it's very likely that someone could get a brand new 2011 or 2010 on closeout for 20% off...or roughly $1150. So used would have to be cheaper than that.
Also, as far as the bars...I would recommend selling them separately to get maximum value. The Secteur is a relaxed geometry bike...so the chances of a prospective buyer (and a 61cm buyer at that) who even wants aero bars on the bike is pretty slim. I would guess you could get about $100-120 for the bars sold separately.
FWIW...I had a 2009 specialized allez elite also with 105. Retailed for $1500, but I only paid $1215 on closeout. Sold it earlier this year to upgrade for $600. Sold it to a friend of a friend...so I cut him a slight deal...but I doubt I could have gotten much more than $725 on the open market. Bike was in good shape...but not pristine...had a few scratches here and there from tipping over when learning clipless.