If google spreadsheets only lets you put up 1mb, use the same gmail address, get a www.googlepages.com site, create a page, and upload the file there, publish it, and link to it here.
FTP sites tend to expire large files over a period so the googlepages link should be more persistant. Googlepages should let you put up files to 10mb but there are ways to link to larger files on there.
Best thing would be to put all the files into a winrar (.rar) file and password it so people can't access it and upload that single file to one of the hosts.