get well soon! and enjoy your trip!
If you want to touch the phone, go into a Cingular store and test one out. They are virtually the same phone. They are identical in build except the Cingular one (of course) has the cingular branding and cingular extras, and a slower processor. The i320n has a 400mhz processor while the i607 only has a 201mhz.
So yea, just go into a Cingular store and test out the Blackjack, it will be just like holding and using the i320n.