We are planning on upgrading our hardware. We plan on running Windows 2008 and VMware. We are a small company of only 13 employees. The future of this company will only employ no more than 25 employees, thats if we have a grand boost in clients. But reasonably it will be about 20 employees. Employees will work from home and from the office. I was looking at the Dell PowerVault MD3000 and MD3200 for an SAN array. Regarding the hard drives there are the SAS, SATA, and the NLSAS. Then there is the 7200RPM, 10,000RPM, and the 15,000RPM. I am wondering if I can get away with the 7200RPM NLSAS drives instead of using the 10K & 15K RPM SAS drives. We only run several applicaions, mainly FileMaker. We plan on virtualizing the office desktops. The MD3000 has 15 drives which two will be hot spare, so data will be dispersed to 13 drives. The MD3200 has 12 drives in which two will be hot spare, so data will be dispersed to 10 drives. What would you recommend? What is the best solution. I do not have a big budget. That is why I was looking into the 7200 RPM NLSAS. ALso would it make a real difference in cache size. Can I get away with 16 MB instead of 64MB?