Wow, apple, I actually say the light bulb come on over your head! There are many choices in vocal mics, and the right choice is personal, and changes a lot depending on the room, the song, the key, and just how you felt that day. Great songs have been recorded on cheap dynamic microphones, but there are lots of colors. A high percentage of top vocal performances were recorded on an SM58 ($100 or so), and folks will still pay $8500 for a Brauner or vintage RCA ribbon mics.
There is no vocal mic so good that I cannot find a singer who will make it sound like shit, and then sound better through an SM57. I do have this opinion, though. Even though condensers are cool, to learn mic technique and become a real stage singer, it is more important, initially, that you come to terms with dynamics. Just learn to sing well into an SM58. Personally, I sound better through AKG instrument mics, like D770. There's that personal thing again. When you perform on a stage, you create the illusion that you are singing to the audience. The real audience is a 1" gold-spluttered diaphragm. If a handheld dynamic is an audience, a studio condenser mic is a music critic. If you are good, it'll make you sound good, and the reverse in a scary fashion. Go ahead and buy a good cheap condenser for a learning tool, say MXL V67. You may find it a bit brutal when you read about your performance in the morning paper...Richie