I bought a 128MB USB 2.0 pen drive from dabs - part of their dabs value range. Only £19.99 including p+p. Obviously I wanted bigger, but I don't need any bigger. (1GB came in at under £90). This is just for using work's bandwidth to take home updates etc.
For some reason (check lkml) USB mass storage went a bit haywire recently in linux kernel-land and on my work desktop I had to go from Arjan V kernel-2.6.8-1.533 to Rawhide (FC3) kernel-2.6.8-1.540 to get it to work, but apart from that - it's fantastic.
Kewl little device.