HP recently unveiled its newest professional desktop, the HP Pro 3130 Mini-tower Business PC. Designed for small and medium-sized companies, the computer has a variety of ports, slots, and bays that expand its capabilities as needed. It comes loaded with HP Protect Tools for Small Business, including a password manager that protects and manages passwords, an access manager that restricts unauthorized data removal, and McAfee Total Protection for Business. The computer comes in three models featuring Intel Core processors that automatically apply power where it's needed most to make multi-tasking easier. The Windows 7 computer also features HP's Power Assistant software, which helps businesses monitor energy savings through real-time reporting. Cost: Starting at $569