I need a plasmid to express SP6 RNA pol in E. coli

[UAPJ at VAX5.CIT.CORNELL.EDU]

I would like to express the SP6 RNA polymerase in an E. 
coli strain that contains a pBR322 based plasmid. Does 
anyone out there have an expression plasmid ( preferably 
inducible) that I could use? Any other ideas on how to 
express the SP6 polymerase would be most welcome.

 
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                           "
Steve Passmore             "    Biochemistry,etc   
                           "    Cornell University
UAPJ at VAX5.CIT.CORNELL.EDU  "    Ithaca, NY
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