We're running a large scale Intel platform with Red Hat. Quad Intel Xeon 2.8 Gz MP, 16 GB RAM, attached to a midsize 2GB SAN. It has the best performance our ERP vendor has ever seen. We can sustain 125K locks per second under this configuration with approximately 1.5GB updates per minute with replication. This has the lowest price point against performance. I am looking at another Quad Opteron box with localy attached SATA disk. A Quad with 32 GB RAM and 6 TB of raw disk space can be aquired for as low as $30,000. If you lower the SATA disk size to ones running 15K RPM, you can exceed the 2GB Fiber SAN performance. Eventually, Progress will have to release a 64Bit version or the DB. Until then, it will run 32 bit native under the 64 bit OS, much like the AIX platform.