Careful about the clock/CPU upgrade.
It usually comes with an automatic multi-processing conversion. If you think life can be boring sometimes now, just wait until you have thirty-two personalities, with one being in charge, and the others re-re-re-re-reading everything you've ever looked at.
I'd suggest getting the internal RF modulator and receivers. You'd be tempted to listen in on cell-phone conversations, but hey, input is input.
Input is where you find it.
*chuckle*
Yeah, the clock/CPU upgrade may be a little overdoing it.