I'm working with a public library in a midwestern US town of 6000 people with about 125 library users per day. We have had SirsiDynix Unicorn and iBistro for 7+ years. It has simple become too expensive to continue with Sirsi and their service has declined as the price has increased over the years. We have looked at Evergreen and Kaho in several site visits and we think Koha would be a great replacement. I have extensive IT experience (20+ years) in the Windows world in both software development and system administration. I have used Macs a great deal over the years and I have used Linux, but not seriously managed Linux systems. Admin would be easier for us on Windows, but lack of current version support and perceived Z.3950 issues appear to make this a bad choice. We are considering running Koha on a new Intel based Mac-Mini. Any good or bad experiences here. I read a tutorial which makes it look very workable. At one time there was a Z.3950 problem but I think that went away in 3.x Is that true? I think we need to stay on MySQL v4.1 also. Still true? This looks like a good option. Assuming we run it on Linux, what is the preferred distro? Would a 2.6 GHz Pentium 4 based Dell 2650 likely be up to the task? What suggestions would you have for disk partitions? Regarding the Sirsi migration, does anyone have any experiences with that? We've had initial conversations with several service providers, but money is extremely tight right now and we are considering taking a stab at the migration ourselves. If that fails, we can hire someone. I'll gladly read the full docs before proceeding and I'm just looking for big ideas at this point. I think we can export Marc8 records from Sirsi and import them into Kaho. Is there much more to the inventory conversion. I've not yet considered patron conversion. Any tips or warnings? Thanks -- Rich Bright