co-transfecting with multiple vectors

[Wendy Grus]

Hi all-
I am transfecting some HEK 293 T cells to transiently express a few
different genes.  Some of these genes are on pcDNA3.1 vectors while some are
on pCI vectors.  Will having them on different vectors affect their
expression levels?  Will I have to play with the concentrations of each?
 Should I put all the genes in one vector (singly)?

Thanks,
Wendy Grus