Home server rack recommendations?

[Kent R. Spillner]

Can anyone recommend a good server rack for home?  Ideally something with 
casters so I can move it around, preferably 12-16U.  I found several via Google 
but my primary concern is the quality & durability of the casters.  Not that I 
plan on wheeling this old gear around a lot, I just want the piece of mind that 
a caster won't snap off when I do.  :)