What is going on with home prices on Cape Cod?

I read an article on zillow http://www.zillow.com/local-info/MA-Cape-Cod-Metro-home-value/r_394361/ that seems to point to slightly higher prices on the Cape.  I want to sell but I cant give the property away.  I bought in Marstons Mills in 2006 and paid way too much.  Anyone have any ideas on market trend for 2012??  The way things look now I’ll need to bring $45-50K to the table just to sell.  Ideas?  Lease option?  Im current and I dont want to destroy my credit but does it make sense to keep paying when you owe 335 and the property is worth 275?  Help…. Martin S