I think it does exist. Check out www.pcclub.com
. Ive gone there for years now. They have external enclosrues of i remember correctly, and aslong as they still do, which im pretty sure they do, they most likely do have the USB kind.
Here you go!
EDIT: actually **** thats IDE
There ya go.
ATHENA 3.5" SATA-SATA+COMBO ENCLOSURE
Interface: SATA to (USB2.0+SATA) Combo
With 8 x 8cm turbo super cooling fan
For 3.5" SATA HDD, Cable less connection
Support SATA-I, II
High Speed :USB2.0 upto 480 Mbps
SATA upto 150MB & 300MB
Power adapter: 100~240V/12V- 2.0A
OS :Windows Win98se/ME/2000/XP,
Mac 9.0 & higher