Dedicated servers for IRC are hard to come by for $70.

I could offer a

Celeron 2.4
512 MB RAM
80 Gig hdd
64 IP Addresses, with full RDNS
100 Mbit/sec port - 1500 GB/month

For no less then $85 a month, with no setup fees.

We are located in New Jersey, USA and your more then welcome to email me for more info.

If that doesnt suite you, I would look into VDS for servers. http://www.fast-solutions.net/?option=server is ran by gigeservers and sell cheap VPS for IRC.