A classmate of mine had problems with a Sony Vaio laptop; the screen resolution couldn't be set properly on Ubuntu 8.04 with the default drivers. Maybe it could have been fixed by using Nvidia's drivers though.
The trackpad worked out of the box for me with a Macbook Pro 7,1 and Ubuntu 11.04 (same goes for Fedora 15 by the way). Even though it sometimes recognizes a single finger as two fingers and starts scrolling, this happens rarely and for me it's no problem at all to select text with the thumb or another finger.
Maybe it's possible to tweak some settings with the synclient program (if you haven't tried that already).
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