Hey PostWhore,
Hit me up on ICQ: 4930562
www.RealityCheckNetwork.com - we just setup another client who ran into the exact same problem. His site was being listed on digg.com and his server couldn't handle it.
We have a lot of pro-active tools that notify us in case of any problem and a 24x7 round the clock support team that can react and fix issues as they occur.
We offer quality DELL PowerEdge servers that are capable of handling large amounts of traffic and we host some very large blog, adult and members sites, so we have a lot of experience in high traffic load websites.
Hope to hear from you!