The Nady mics are actually workable and decent. They're the same mic as the Pacific Pro Audio R-One. They can choke a little on some low freqs when tracking AC guitar but handle voice pretty well with that "vintagey" ribbon color. You can also mod the grill by removing the outer 2 layers and the pop filter foam inside to allow more upper mids and high's through. They're a good deal.

Check out shinybox.com though because those guys are selling modded versions of those mics and putting in higher quality txformers like Lundhal's and Cinemag (listen to the soundclips on the site). You pay a little more but they sound great.

Also, try a mic with an omni pattern. Sometimes a vocalist with a freq range like you're describing sounds fantastic with an omni capsule (pattern).

Thanks for the tip on ShinyBox.com.Looks interesting.

We actually have tried omni,helped a lot,but still not quite there.The 58 sounds better.Like I said,I have no particular aversion to using the 58,but we are trying to maximize our possibilities,and he's on a tight budget.