Second time for me to use the quick thread!!

Anyway my PS3 is pretty screwed up at the moment and it's disk reader is pretty fudgeed and I think the GPU may be over heating according to another thread that I posted about my PS3 problems.
I don't really use my PS3 that much I thought now is a better time to get this fixed.

Within the next 24 hours I am hoping to send in to Sony, might have to pay a bit of money to get it fixed because my warrenty is over it's date now.
But maybe it might be easier to trade it in for a Slim PS3 seeing as my current one still will turn one and just pretend I know nothing of it's problems. Any good trade deals in Australia?

Lastly maybe you guys can suggest me an alternative.
Thanks in advance.