Many companies make hard drive docks and we personally have reviewed at least a dozen. A few months back we reviewed one of MUKii's first dock models. It turned out to be a great unit that performed well and still looked good while doing it. MUKii has decided to give that model a refresher and now have came out with an improved version. Similar to their hard drive enclosure (which we also just reviewed), this new model has a small LCD readout that displays the real time transfer speeds to and from the drive when accessed.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips