Thank you to all of you who read my original post, and gave me all that great feedback. After futher testing with JMeter on our development server, I'm recommending to our IT department to budget for 3 machines *just in case*, but to only purchase one right now. So we'll roll out with a single Zope server, and prepare for the possibility of moving to a ZEO setup in the future, if needed. If you're curious, the single server we're going with is the Compaq(HP) Proliant DL380, with a single 2.8 GHz Xeon, 2 GB RAM, 3x 10K RPM Ultra320 SCSI 38 GB drives (RAID 5), etc. I feel pretty confident that we should be able to handle 500,000 hits/day, now. When we get to deployment, I'll be sure to report back with our performance benchmarking results (around November). Thanks again, bart