Definitely suggest you get in touch with
www.RealityCheckNetwork.com - we try to provide exactly this level of service to all of our clients.
To add some icing to the cake, we just got the EXACT config servers you're asking about
DELL PowerEdge
3Ghz Xeon (dual capable)
1GB RAM
2x 73GB SCSI (RAID1)
+ 1000GB
My partner, liquidmoe posted above so you can contact either him or I.
Additionally you get 24x7 support via ICQ, Email, Phone
Active monitoring so our techs are alerted as soon as there's a problem with Apache/FTP/DNS or any other daemon and begin working to resolve your issue
Mulitple data centers to setup your site
Optional Data backups
And many other useful performance / security features allowing you to focus on growing your business while we handle its technical implementation.
Looking forward to hearing from you.