Yep Ali you're right it does tend to provoke a firestorm of opinions and usually I would use what you use but wasn't real sure with laptops cos of the enclosed nature of the beast and Toshiba's preference. I might go with AS5 or maybe that Noctua NT-H1 as it is quite a bit thicker at room temps.
I'll just keep half an eye on the temps for the first few uses in any case (nice pun?? LOL!!)
Thanks for the ref too mate