Re: Marshall TSL 602
great sounding amps and you can get them cheap since they've been discontinued. they don't get hotter than any other tube amp i've owned and i didn't have any problems with mine. personally, i prefer the dsl 100 over any tsl, but for in a combo the tsl 602 is very good.
the only thing that really bothered me is that the third channel gets noisy at high gain levels. it might be the stock tubes or something, i don't know, but it was kind of annoying. didn't have that problem at all with the dsl 100. if you can, get the dsl 100 with a 1/2 cab and you'll have an awesome tone.
i prefer the orange channel on the tsl. it's not real high gain, but it's got a nice sound to it. real marshally tone of course. put a tube screamer in front and you've got yourself a kick-ass amp.
you can find the tsl 601s pretty cheap now. as with any tube amp, it's going to get hot. all you have to do is keep a fan in your practice area or at least keep your amp away from the wall. some people put their amps right against the wall and that's not going to help if there are any heat issues anyway. i love marshall amps. good luck with it.