Well I've been traveling for quite a while now, and have always found that spring and summer are a lot easier and funner for travel than fall and winter. Even in warm places, the days are so short in the fall and winter. But I think now I've got a way to "cheat" - by going to the southern hemisphere!
So I haven't bought the ticket yet, but I'm pretty sure that I'll be coming to Australia in November or December, and I'm looking for folks that might want to travel with me down there.
I plan to do a mix of BeWelcoming/CSing/HCing and camping, and travel pretty much exclusivelly by hitch-hiking (auto-stop). I'll probably be on the continent for at least a few months, and may also make it to New Zealand, and perhaps somewhere in Asia afterwards...
So reply on here and/or email me if you think you might be interested in joining me (whether you're there already or gonna be arriving before or after me). My profile should give you a pretty basic idea about me (The profile on CS is currently a bit more detailed: http://www.couchsurfing.com/people/abrahamhaim) and I can tell you "heaps" more if you really wanna know! :-)