Toshiba Hdd2189 hard drive enclosure

There are many external enclosures available what interface are you looking to use, eSATA, USB3.0, Firewire, Thunderbolt, etc.? 2.5" drives are fairly easy to find enclosures for, IDE connector a little harder - here's a list of 14 that should work... various connection types, mostly firewire and USB http://www.newegg.com/Product/ProductList.aspx?Submit=Property&Subcategory=92&Description=&Type=&N=100007705&IsNodeId=1&IsPowerSearch=1&srchInDesc=&MinPrice=&MaxPrice=&PropertyCodeValue=538%3A44401&PropertyCodeValue=538%3A7124&PropertyCodeValue=541%3A7130
 
ATA-2,3,4,5,6 Interface refers to various levels of what is also known as PATA or IDE, all it's saying really is that it is backward compatible through all IDE (PATA) modes, (levels) there were only 6 - this article helps explain http://en.kioskea.net/contents/pc/ide-ata.php3 as does Wikipedia's entry on Parallel ATA
IDE is the more common term used for PATA, hope it helps
The first two on the link had firewire aka "1394" all the rest appear to be USB 2.0