Earlier today Engadget pointed out a review of the R-Driver II USB to IDE cable adapter that retails for less than $35. The review they noticed was published on theGadgeteer.com and gives basic information about the product. I did some research on this and other USB 2.0 to IDE solutions and the review I liked best is found on DansData.com.
Quick and dirty tools like this are great if they work and you need a cheap, temporary solution. Other people like Martin O’Donnell swear by little drive enclosures that they buy at places like Fry’s Electronics or on EBay. YMMV.