i do a lot of singing at the keyboard: standards and jazz. my voice is pretty standard in range and timbre. I used the SM58 for years, just because everyone said to i guess. 10 years ago i went with the AKG D880 after reading reviews about it being "sexy"and colored toward the hi's and lo's..going into Mars (r.i.p.--remember them?)
and trying everything, and agreeing that it was indeed sexy. i found the Sennheisers next best but almost toooo smooth and even, kinda boring. and mucho dinero. the D880 was
$99, and for me much better than the sm58.

6 months ago i decided to try another mic audition at Guitar Center. The AKG D5 blew them all away to me, and it blew away my D880 too. and also just $99.
I've always gotten good feedback on my singing, but lately everyone is commenting on how great it's becoming. when I sing into the D5, it's like everything is full yet crystal clear at the same time, and i can really express myself with it in ways i never could with any other mic. I suggest you try it. I don't think it's a good mic for females, Just male singers like me with a lot of midrange.
The SM58 seems to still be the mic of choice for women, and for high tenor males. If your voice tends to a light tenor/baritone, I think you will love how the D5 picks up the soft lows and projects them.

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Miami Mo