Toshiba laptop issues/resell value?

I have a Toshiba A75-S206 that has a bevy of issues.  It just had to go in for service.  The heatsink wasn't good enough to stand up to a P4, so it kept giving me heat-based lockups at full clip, so I had to run it at 1.8ghz when it could go up to 2.8ghz.  Even so, I had to prop it up on a couple of CD cases so the fans could suck up enough air.  But if I was using the HDD too much (like running Scandisk or Ad-Aware), bam, it's killed for an overheat.

What's worse, the palm rest isn't properly grounded, so whenever I touched the damn thing, it ran the risk of locking up. 

It should be back in a week.  Has anyone had similar problems with Toshibas?  Any other preventative solutions or maintenance I could try? 

Failing that, anyone think I could sell it secondhand and make back the $800 I initially spent on it in March from a guy on craigslist? 

no problem with any Toshiba I owned.

I think the problem is...you spend $800 on a guy.

Well, back then it was a bargain; it was retailing for around $1400.  I needed a good, powerful laptop and a friend whom I trust that deals in IT said he wasn't aware of anything bad about it.

Next lappy I get is so totally going to be a Dell.