If I didn't buy this laptop a few months ago and if I had only a quarter of a brain.. I'd consider buying an alienware.
Why pay through the nose for an alienware laptop when you can get comparable laptops for much less?
As for the overclocking well at the moment at least its a no go(ntune the only program that reads the clocks properly doesn't allow me to change the clocks). However reading on the notebookreview forums this is quite common (something to do with different bios versions on the cards causing problems with different drivers- I may have read this wrong as I am really tired - damn UK group VAT returns
)
I will be trying a different driver tommorow.
Juding by what I have read so far on different forums some people have been able to hit 600 on the core (up from 500 stock) and 900 on the memory (up from 800 stock), there was no mention of the shader clock. I can only assume this would put the card in line roughly with a desktop 8800GT (as its standard performance is somewhere between a 9600GT and a 8800GT).