My network switch is a Linksys product, and it seems to be quite sturdy and reliable in my experience. The fact that your last one has lasted so long is probably a good sign.
If you want to try something new, I have had okay experiences with Netgear and D-Link products, though each has had it's issues (Netgear tended to be problematic in the driver domain, while D-Link doesn't let you install custom firmware on most products, if you're into that sort of thing).