you really can't beat the workmanship and custom stuff they put into their laptops. you could escape with a dell Inspiron or xps for a little less, but you wouldn't be getting the laptop you get from killer notebooks.
Not that it hasn't been said enough already :wink: but I highly reccomend a K|N Executioner as well. Had mine for a little while and it still amazes me. As far as DX10... As long as the new cards will fit in there (I have faith in Mark cramming them in somehow) I am planning on upgrading my Executioner from the 7950GTX when I can.