It's getting harder to get enamels nowadays, so it seems I may be forced to go down the acrylic route eventually (even though I've used enamels since I was a nipper and am familiar with them) 
At least where I am, it's more expensive to get quality acrylics than quality enamels, plus they're harder to source. I used to paint some of the 40K stuff myself with the Citadel acrylics (using enamels for the basecoats and some colours where I didn't have the appropriate acrylics), and they're pretty nice paints. Granted, acrylics are less messy and easier to mix (since you don't need turpentine, just water...) but turps cleans brushes and works as a solvent for enamels, it just takes longer to do I suppose. Also a big plus with acrylics is they dry in a fraction of the time it takes for enamel paints to cure properly (like 4-6 hours...). I also prefer the tone of the finish you get with enamels, but it's hard to describe what I mean by that. At the end of the day it's all down to personal preference!
.
