Editors' Note: We updated this review on May 4 with the results of the new SYSMark 2007 Preview tests. The updates are highlighted below.

The Dell Dimension E521 represents the entry point for Windows Vista Home Premium. Sure you could run that Vista edition with less (1GB instead of 2GB, single core instead of dual core), but in my opinion, this E521 is the effective minimum configuration to keep you computing in good stead for the next few years. With the introduction of more programs that take advantage of Vista's new features, and with the extra add-ons like Vista Gadgets and (missing) security software, you'll need the future-proofed features if you're the type of user (beginning multimedia enthusiast or budding power user) who wants Vista Premium instead of Vista Home Basic.