I've often contemplated moving to a lightweight rig (I even went Barefaced® this year), but haven't found anything that [i]feels[/i] as good as a big, half-ton head.
I've played through TC stuff, OBTs etc… but nothing has really had that 'wow' factor. My wife would like me to have a smaller amp, but ultimately sound is king. To quote Joe Meek "if it sounds right, it IS right"