http://www.dlink.com/products/?pid=385
A lot faster and better connection, but just like when dial-up modems began their rise to high speed - they only work that fast and FAR when connected to a another like unit.
" When used with other D-Link Super G with MIMO wireless products, the range can reach up to 8x farther coverage than standard 802.11g "
The D-Link page is a good place to start