I really want to use my new iBook as a portable studio out and about. I was considering doing some light work with logic and a USB midi keyboard. Would I be able to install logic 7, and I'd so, how many software instruments could the machine cope with? If not I'd happily record midi instruments and transfer it to logic at home on my MBP. Specs are 500Mhz ram will be 640Mb hard disk is 40Gb. I am also considering over locking the CPU as I have heard it can be pushed to 600Mhz?