Dapper or Fiesty for a low volume web server?

[ocdude]

I am currently looking into moving a relatively low traffic website and it's associated e-mail addresses onto a spare box that I have sitting around. Currently, I have Dapper Server, but I was wondering if it was worth it to upgrade the server to Fiesty Fawn after it's release. I am planning on rebuilding the server anyway during the summer. The lists below are the specs for the server and what it's going to be running, in theory.

Hardware:
AMD Athlon(tm) XP 2000+
1GB DDR 400 RAM
60 GB ATA/100 Hard disk

Software (planned):
Apache2 (fcgi)
PHP5
MySQL5
Ruby on Rails
ffmpeg (for automatic podcast reformatting)
bind9
postfix
courier
imapd

Thanks for any input!

[dca]

Feisty only supported for eighteen months after release, Dapper is an LTS release good for five years (from 2006) worth of updates. Sorry, just thought I'd bring that up, a lot of the people I work with always ramble on about that because Red Hat costs so much we can only afford to have one server added to RHN at a time...