Painting - oil based enamel - alternative?

I love the finish that a good oil based enamel gives on woodwork. But over a relatively short period of time the lighter colors of enamel yellow and fade. Is there any alternative in a water based paint that will give me the same hard smooth finish?

Thanks!

I have used the Sherwin Williams line of ProClassic Waterborne paint and it did exceptionally well for a waterbased paint when sprayed, watch when brushing it though because it likes to run. If you use it with a brush I would suggest thinning it a little with water and applying 2 thin coats rather than trying to cover with one because like I said it likes to run.

Are you painting over an existing oil based paint?

SW ProClassic works good, as does Ben Moore's Waterborne Impervo. Slight learning curve in handling, but levels and dries nicely like the old oils used to.

Thanks for the tips. :)

I have used Ben Moore's oil Impervo before, thinned slightly with Penetrol and loved the finish (other than the resultant yellowing). Didn't realize there was a water-based Impervo. Figures, the Ben Moore store is about 30 miles away from me and I seem to always underestimate the amount of paint I need! Sherwin Williams is closer, but I don't care for their paint as well. (Must admit, I haven't tried it for years.) I assume Floetrol would be an appropriate additive? I thought that gave a little longer working time than just plain water.

I will be going over stained woodwork with some type of polyurethane finish in some rooms and others have an unknown paint on the trim. I just assumed I would have to give all a light sanding first(?)

Sometimes I think I'll be ready for condo living by the time I get this house done!