I've owned an IBM as well as an Acer before trying Toshiba. I have an a70-sc1. I had the same problem as many people with the machine not having sound or waking up after hibernation so I disabled hibernation and have had no problmes since. EVERY computer will have it's issues. Salesmen at several different stores reccomended Toshiba over all other brands and there are a few good reviews of Toshiba overall.
There are some issues noted in this forum regarding static and the speakers, as well there was been a recall from Toshiba of some machines with faulty memory modules. If you buy a new machine from Toshiba manufactured in the past few weeks the problem has been corrected.
All in all I love my A70, it is built well, seems tough and does everything I need. I'm on the road 1 week a month and it travels well too.