Supply of ball bearing "cell buster"?

[mbxfd at unicorn.nott.ac.uk]

 hello,
Does anyone know of a supplier of bal bearing cell crackers (busters) as
developed by Balch and Rothman?  I believe the EMBL Workshop may sell them
,anyone have an e-mail address for this?  A UK supplier would be useful.  Also
is there a cheaper way to effectively homogenise cells.  I want the secretory
granules from RBL2H3 cells and a glass Dounce is not very effective.
Thanks.
NB Please reply directly to me if possible as I don't use this group (not being
a real molecular biologist)

Fergus Doherty
Biochemistry,
Notttingham University,
UK.