I picked up a PowerBook 3400c off of eBay about 6 months ago, put a 30GB hd in it, and have been using it since as my daily machine without a hitch. (I went away on exchange this year to Europe and couldn't bring my 7600 with me.
What I'd love though, asside from USB support, is to get 802.11 wireless networking ability on it.
I saw a vendor at MWNY '02 that was selling Wireless PCMCIA cards that worked in non-cardbus enabled laptops (if the 3400 had cardbus, I wouldn't be asking this).
Does anyone know of a 802.11 card that works in laptops that don't have cardbus? I've looked around, but I haven't been able to find a vendor on the net.
Also, what does running a wireless networking card do to battery life?