Are you are talking about studio recording rather than live stage usage? How close to the mic does the vocalist like to get?

For close work, you would be surprised how good an SM58 sounds through a transformer-input preamp like the Baby Animal. For an even larger sound from a dynamic mic, try the EV RE20.

Otherwise, it's the usual suspects in that price bracket for LDCs and ribbons. If you are thinking of the Bluebird, consider also the Cascade Fathead.

It would be purely for studio work, i have since looked into the Blue Woodpecker Ribbon Microphone and that looks extremely interesting i think ill be going with that.

In the price range you cited?!?!?
Bos hit on a good point; DYNAMICS can be GREAT on hard rock male vocals. I use the RE-20 and the Heil PR40, as well as the ubiquitous SM58 and SM7 on that type of voice with excellent results. First off, these mics have tighter patterns than your typical LDC, so less of the room is picked up. They also handle being "eaten" a lot better. They also tend to overload a mic pre less when they're being screamed into.

haha. being a bit of a gear junky, deciding on the woodpecker was a bit of an impulse buy, until my credit card was declined on ebay and have since taken a bit more thought... thanks for your advice guys... i am happy to spend over $300... i think the SM7 may work out. Another thing is that i do not have the luxury of a treated room either, so a LDC probably will not do me justice anyway.

SM58, err, SM58, Oh, you might want to try an SM57. (Another rock singer here).