Yeah, I changed the cam in my windsor to a Crane 2031. Seems to be pretty good, although i can only compare to stock. Idle sounds a bit meaner, and a bit rougher (i reckon it sounds OK anyway), but nothing you can't live with (i have an auto by the way).
Probably a bit more work to install a cam in a V8 than the 6, but not all that difficult (this was my first, and i did it by myself with no real dramas). I could give you some details of the installation if you were interested (i took some notes along the way, so i could put it all back together!).
I found the cam change gave a reasonable increase in performance, with virtually no loss in low speed drivablilty, although i had done some other mods first. I have not dynoed any before or after, but it dropped my 1/4 mile from 14.68 to 14.42, with no other changes. I would do something with your heads before i got a better cam though if i were you. If you can afford it, maybe do them at the same time, that way you only tear the motor apart once. Might as well do something with the inlet manifold while you're there!
The only reason I ended up going with the crane cam instead of a crow or COME one as it was about $300 cheaper. I figured that if these guys make them for the huge 5.0 market in the US, they must know a thing or two about what they are doing.
You need to run 1.7 ratio rockers with the 2031 by the way. I think you can get the crane 2030 if you have 1.6 ratio, which is meant to have the same opening at the valve as the 2031. I already had better valve springs, but you would probably need new ones too, and a new timing chain either way.