IMHO, update to Snow leopard 10.6.8 and stay there for the moment. Lion still a work in progress.
Regards.
been running Lion and several Epson printers for quite some time. No problems, and I like several of the new features in Lion. Not sure what about it is a "work in progress", it's pretty solid. Heck, it's already to version 10.7.2. (not sure how hard it is to go from Leopard straight to Lion, may need to install SL first?)
Only problem is if you are not on CS5 ... CS3 is challenging, perhaps even CS4.
You will prob. need to install latest drivers from Epson, but both printers should be fine. You may have to go through some of the clean out of printer stuff, but new epson utility allows complete removal of old driver stuff before you install new drivers.