Yes you can, you can use STSADM commands to create them. The
following line should do it:
stsadm -o createsite -url <http://servername/personal/username>
http://servername/personal/username -ownerlogin domain\username -owneremail
<mailto:user@...> user@... -sitetemplate SPSPERS
You will then need to go into the site and make whatever changes you want.
Hope this helps.