Looking for an IDE simulator

After having a run of almost half a dozen IDE hard drive failures recently in a short period of time (on my older desktops which use them, I've decided that I should see if there's an IDE emulator (using SD cards) available I could switch to. (I'm not sure why I had so many failures in such a short period; I can only conclude that they're too old now, and reaching the end of their service lives. So soes anyone have one (or more) they can recommend? (IDE simulators only; I don't want to have to mess around changing anything more than I _absolutely_ have to)? I did find these guys: http://store.mesanet.com/index.php?route=product/category&path=74_64 in an online search - the CFADPTHD seems like it's close to what I'd want, except it's Compact Flash; I'd have preferred SD but I guess converting their interface to IDE is more work. Noel