The next mic I'm planning to buy, which might be ideal for you, is the
Rode NT2A. It seems to be a very flexible mic, and (most importantly, for me) it is, (according to Sound On Sound's
review, at least), an extremely low-noise mic. If you're wanting to do soft close-up vocals, you're probably gonna want to turn the level right up on 'em, so any noise might be an issue (and more so if, like me, you like to compress the crap out of them too).
It's 189 quid, I dunno what that works out to in dollars, might be a touch higher than the range you quoted, but if you can pick one up it might be worth looking at.
Of course, you'd wanna test out any mic you plan to buy before parting with your hard earned cash, but I guess you know that already.
obscurity.
"Only the great masters of style ever succeed in being obscure." - Oscar Wilde.