MySQL vs. Oracle DB

Oracle XE does not have windows 64bits version yet. Oralce Standard Version download size 2.5G.

I am looking for a light DB, so I choose MySQL. MySQL windows 64bits is 207M, much lighter.

Below is a nice comparison betw. the 2 databases:

MySQL download site:

http://databases.about.com/gi/o.htm?zi=1/XJ&zTi=1&sdn=databases&cdn=compute&tm=8&f=10&su=p284.13.342.ip_p504.6.342.ip_&tt=29&bt=9&bts=64&zu=http%3A//dev.mysql.com/downloads/mysql/