Here's a fun list of handy photo goodies for shooters on the go: the Macworld Summer Travel Guide. As they say in the opening, "Suntans may fade, but photos and video clips will let you recapture that vacation vibe long after you’ve unpacked." Amen!
They rate the list of accessories and gadgets by cost categories (Bargain to Splurge) and by portability (Weightless to Burdensome). I wrote up one of the items in the list, the Lowepro CompuDaypack, which is one of my favorite travel bags (shown here). But there are lots of other good gear ideas too, that range from the luxurious Epson P-3000 to a free Twitter account.