Just wanted to tip my hat to this place:
http://minneysyachtsurplus.com/
I recently purchased what amounts to probably a 90% jib to replace the one that was thoroughly trashed when I got my boat. Price was unbeatable, and the sail is completely crisp still - just a little dirty upon arrival which was exactly as described. Fast shipping, huge inventory.. and you can even find boat specific sails if desired. I just picked a headsail based on loose measurements, went for something in the ballpark for what I wanted, a little heavier cloth, and budget friendly. (I put my boat on Lake Ontario this year and wanted a decent smaller jib for the days the 150 just won't be ideal - this works perfectly).