A few months ago I installed a Belkin F5D7633au4A ADSL2+ Modem with Wireless-G Router.
My advice is to avoid them. I could connect to Outlook Web Access at work but it choked on the graphical icons and hung. YouTube videos would play and then stop down loading at random parts of the video. Some websites failed to load at all. My boss whom I got one for aswell complained of slowness.
As any techie would, I went and updated to the latest firmware and changed the MTU and alot of other settings (such as change from PPPoE to PPPoA) to try and get it to work and nothing made a difference. A web search found people with similar models from Belkin to be having the same change the MTU and see issue.
So my remedy was install a Netcomm NB6Plus4W ADSL2+ Modem Router. This has none of the problems that I listed above and I found the web interface to be more feature rich also.