Every computer should have an external hard drive to back up files or to store large files, such as movies, that are infrequently accessed. This is an affordable drive with mega storage. My review is here: http://www.amazon.com/review/RGEVM9CBGK0L8/ref=cm_cr_rdp_perm

If you listen to music and watch video/films on your computer, you'll want excellent sound. I use these every day. My review is here: http://www.amazon.com/review/R3DWPPVYV018IG/ref=cm_cr_rdp_perm

For computers with high-speed internet service, you can use VoIP, the newest generation of telecommunication. With the Ooma, you pay for the hardware -- and that's it. You won't have to pay another cent for phone calls within the US. My review is here: http://www.amazon.com/review/R3A3T6OR2EPVOC

Despite the "notebook" designation, I use this wireless mouse with my desktop computer. Although those with very large hands may find it too small, the size is perfect for me. Very reliable and accurate. My review is here: http://www.amazon.com/review/R2L94AAOBQ18UY/ref=cm_cr_rdp_perm

This wireless router is backward compatible, handing both wireless-G and -N wireless devices. N-speed is a must for gamers but also for users who need faster speed for streaming and VoIP. Best used with an ethernet switch. My review is here: http://www.amazon.com/review/RPBZQI4ZGSK5Z/ref=cm_cr_rdp_perm

This excellent graphic/pen tablet is a must-have for those who do computer drawing or other work using a stylus/pen. It comes with a wireless mouse for switching between pen and traditional navigation. My review is here: http://www.amazon.com/review/RXBYS10BM8LOG

If you print photos, you'll want a special purpose printer like this HP for sharp, color-accurate prints. My review is here:

Great for expanding the number of ethernet ports for devices that require LAN connections. I use mine in conjunction with the Linksys N-speed Gaming Adapter. My review is here: http://www.amazon.com/review/RE69LDCOSFD42