Bacterial, Non-Amp expression vectors?

[T. Max M. Soegaard]

Hi all.
I am searching for an expression vector
that works in E.coli and has another
selection marker gene than ampicilin
resistance.
Reason is I already  have another
plasmid in there that carries the
amp-resistance marker.
So, has anyone heard of or eve used such
a vector?

Plese let me in on where you got it..

Thanks in advance for any input..

T.Max.M. Soegaard