Oh, well I've heard a little bit about that. Overall, my computer stays relatively cool, but if you feel by the fan, there is usually a LOT of heat coming out of it, so I just make sure I don't block it at all and have had 0 problems.
Edit: And to be completely honest, my dad's older Sony Vaio gets a lot hotter than my Toshiba does.
It wasn't a heat issue that put me off of Toshibas. My Asus runs regularly at 50-60 degrees Celsius (which is ridiculous) and goes to 90 when I'm pushing it. I do the IT stuff for all of my friends and family and have had experience with Toshiba machines, Asus machines, Thinkpads, Sonys, Dells, Acers and HPs. My cousin had a Toshiba and they are pretty solid machines. I'd put them behind Asus, Lenovo and Sony.
They offer good value for the money and they're good when they're running fine. And I've even known people who've had them run fine for 4 years . The problem I've had with Toshiba machines is that once they start falling apart, they really just fall apart. In addition, dealing with Toshiba's customer support and getting them to actually value the warranty on the machines was quite a hassle in my experiences when compared to Asus, Sony, and even Dell.
But I can only speak from my own experiences. Others may have had a complete opposite experience to me and found Asus customer support crap while Toshibas was great. I leave it to the OP to take all the information we provide and make an informed decision.