onlineleben - 8:49 am on Mar 14, 2011 (gmt 0)
For your email, i would recommend to archive the old stuff in a special archiving software. Go and check out Mailstore Home (freeware). It archives almost every mail format and with your old outlook files, you should be safe. Also keep in mind, that a large outlook file can slow down the whole email program (I experienced that with an outlook file dating back to 2003 - now everything is in the archive and I started fresh (with Thunderbird, not Outlook anymore)).