cheap SCSI enclosure?

[sethg at ropine.com (Seth Gordon)]

My wife's employer has officially "deactivated" her old desktop machine, 
a 400-MHz Macintosh G4 with 1 GB of RAM.  I am tempted to use this for a 
new server, instead of going out and buying a new Intel box.

One catch: I want to attach a few SCSI drives to my new machine to do 
RAID on it.  For fifty bucks, I can get a four-pack of 47-GB SCSI 
Ultra/Wide drives 
(http://www.softwareandstuff.com/h_hd_ST446442W4.html), but these are 
full-height 5.25" drives -- I'm not sure I can even fit one of them 
inside the G4's case.  So if I get the G4 and the drives, I'll need an 
external SCSI enclosure.

Can anyone recommend a source for reasonably-priced enclosures? 
Googling turns up a lot of sites selling U160 or U320 enclosures, which 
is more than I need; the only brand that *seems* appropriate for this 
kind of drive is Manhattan 
(http://www.netcables.com/item_view.cfm?id=163392).