If you really want linux-in-a-file... I believe Slackware has a ZipSlack distribution... Slackware in one big ( 30something megs? ) Zip file you stick on your M$ partition unzip, and loadlin into...
for this and lots of other Linux goodies try: ftp://metalab.unc.edu/pub/Linux Sorry to advertize another distro on the Debian list : ) but this might not be a bad option if one is just trying out linux and doesn't want to repartition, and personally... it was a pretty natural progression to go from Slackware to Debian... --George