Andrew
I have a 12" Skywatcher collapsable. It is great. Very good optics, collapses and extends easily. Little on the heavy side fully assembled - about 40 kgs. Collimation is not really a problem, I check each time and haven't had to adjust for the last three sessions. Got a really good deal through Gerry Gibbs Camera house in Perth (only cost $15 to ship from Sydney warehouse). I understand Andrews also has it on special. For a full review, see Aust Sky & Telescope July 2009, they give it a very good wrap.
I'm very pleased


Rod