Having heard both, I'd say that the SA1 is a more detailed design, but then it is considerably more expensive than the PMCs. I have used the PMCs extensively and really like what they do, but unless you particularly want a small speaker - which will need to be used on stands anyway, I'd also consider PMC's GB1 floorstanders, which will compare very favourably with the smaller speakers plus a pair of good stands.
I'd agree with having a listen to the NEATs, too.