BT can go faster than 50-80K, unless we're talking about BT cell phones! The folks who make BT access points are banging their heads against the marketing wall to get this message out.
The original idea behind BT was largely as a way for cell phones to act as modems for PDAs and laptops, so the stated speeds and range were low to match the speed of GPRS transmissions and the range of cell phone BT radio transmitters. Since then we've seen the intro of BT USB adapters such as the Belkin and the Pico Blue Internet access point also reviewed here. Speeds can and do go much higher with these kinds of connections. The range is also much further than the commonly tossed about 30 feet.
You should get very good speeds out of the Belkin USB adapters. They're great units. We'll be reviewing the new AnyCom BT USB adapter here shortly, and I suspect it will also do well.
You'll likely be very satisfied. I would still say that WiFi has the speed edge, but for USB adapters or access points and DSL, the Belkin BT adapters will be more than adequate.
-------------------- Lisa Gade Editor in Chief, MobileTechReview