OK by no means am i trying to perpetrate being an engineer but i would like to build my little brother who raps and sings a home studio for him to record crisp raw vocals so he can send the tracks to a REAL ENGINEER to mix it. I already have a computer (mac with 2gb of ram), I understand I will need a DAW (ill probably end up purchasing logic, because its a little cheaper than PT and the engineer said he could still make good mixes on PT from any DAW i use), I wanted to kind of stay in budget and get him an SM7 mic for about $350 (i read many good reviews about it) and as for as an interface/preamp goes I thought about getting him an Apogee Duet 1 or 2 for about $600 as i saw some good reviews about that 2.
Do any of you pros think this is enough? he just needs something clean that can be mixed by a professional.
Good for you man, your brother is lucky to have you. I've also never used the SM7B personally but I've seen countless people testify for it for rap vox, supposed to be pretty flat and punchy (which to me is something you'd want with rap vocals). The setup you're looking at sounds just fine for your purposes, the most important thing in my opinion is going to be the room or recording space itself. There are lots of options for treatment as someone stated, look through some threads and I'm sure you can find a practical, affordable method for rap vocals. Good luck.
Nice! Snazzy set up for a beginner but if you have it, bless. I use the sm7b all the time. It's great for rap. It's a dynamic mic so yes it does require a lot of gain. I've used the Apogee Ensemble and Symphony so I don't think you will have a problem with the Duet. The sm7 comes with a mic buff but remove it and get a real pop filter. If you want less room noise, get some mic treatment like a reflection filter or my favorite the mic thing by sm pro. It comes with a mic boom already so no need to get a mic stand. Take this advice with a grain of salt. I have worked with many rappers that are new to recording and lack mic technique. The sm7 is great for this situation because it is not as sensitive as say your typical condenser and won't pick up breathing sounds and the like. But in the future get your hands on a used cheap condenser and listen to the difference. Listen to the nuances in the delivery. This will teach you breath control, mic placement, voice projection, things that occur naturally but can get in the way of a great take. Starting off with an sm7, you might not hear these things and never learn how to control.