Oh awesome. I actually sell computers for a living, so knowing things like that is handy. Not that I'd really recommend anyone with a laptop of pre-Core 2 Duo range to be virtualising an operating system, but my mantra is "all knowledge is worth having".
greg: Current draw of 4A?? Not sure about that. Surely it's best to measure the power draw in watts?
Here is a link that you may find handy. As you'd expect, the dual-core core i7s use a lot less power than the quads!
Anyway, my understanding is that processors run on very tiny voltages - less than 2V. So at 4A, you'd be looking for a max TDP of 8W? Only the
slower U7000 series, which are Core 2 Duos, approach this.
Can someone who knows microelectronics better than me confirm this?