I have the T01 "Terabyte" package from Globat (www.globat.com), with 25 GB storage and 300 GB/month transfer capacity (as of October 2007). I currently use about 9 GB for storage.
Globat has been regularly upgrading the storage and download capacity without increasing cost to keep up with the competition, and that has very nicely kept me well into the green with my Manuals pages.
Here is a snapshot of the traffic at www.ko4bb.com since January 2007:
Overall, the Manuals are by far the main attraction, with about 90% of the visits (evenly split between Test Equipment and Ham Radio). The Tower page is a distant second.