...he really should consider a Macintosh. Especially if he's not very computer-savvy and doesn't want to be.
Mac OS-X rules for photos, voice, AV, and all his other multi-media needs. Artists in all media, including graphic and photo, are Mac's most loyal fans.
The full MS Office suite is available for OS-X. Importing and exporting between the OS-X and Windows environments is transparent.
He can use IE, Netscape, Mozilla, or whatever he's used to on Windows, and there are also Mac-specific browsers that are fully IE-compatible.
Up- and down-loading, including catalogs, streaming video, backups, etc., are a piece of cake on OS-X. We use a removable hard disk for backup. Or he can also go with CD-RW backup depending on what percentage of his files are volatile.
Viruses are not a big headache on Macs for two reasons.
1. Apple builds a new OS for every new generation of hardware. They're not still trying to upgrade an OS that was designed 20 years ago for an 8080 system with a monochrome text-only monitor. As a result each Mac OS is developed under state-of-the-art software project management principles including QA. There are no undiscovered defects like the ones in Windows that have been sitting on your computer waiting to jump at you for six years, left over from Windows 98. Without these built-in wormholes, it's difficult for hackers to find a way into a Mac.
2. There aren't a lot of Macs out there so the hackers don't get much fun out of targeting them.
I guess if I keep talking people into buying Macs that will change. Maybe I should shut up and keep the secret. ^_^
Anyway, people who are unreasonably paranoid about worms and viruses (if that's possible!) tend to love Macs. In two years my wife's anti-virus software has never intercepted a virus on her PowerBook with a 24-7 internet connection. For a while a couple of months ago I was getting hit about once a day on my PC.