I think having two computers with you all the time in case your workstation suddenly crashes could become a pain in the ass. It's easier to accept that shit happens.

I just bought a software sampler (Kontakt 2), and am going to start using it for my drum kits, pianos and brass. I'm not sure how stable it is yet - so just in case I'm going to make sure my Tyros is fully programmed to take over in need be!

Yamaha Andy, I almost feel the same as you[something breaks, I go home]...but if You travel 4and 1/2 hours [round trip], and the rest of your band depends on YOU...and the hotel with the Jersey shore crowd is depending on you........you carry another 7 pound laptop..just in case.