If you're looking for a makeup makeover from mainstream places, MAC is great for makeup help. For help with clothes, wigs, etc., look for places that specialize in making over crossdressers, but this is not a particularly good place to find help with that. Send me a private message, I can suggest another forum where you'll likely find a lot more help with finding a place that specializes in crossdresser makeovers.
But you can get a lot of help with specific makeup and hair questions here, that's for sure. This is a friendly place, lots of helpful members here. /emoticons/[email protected] 2x" width="20" height="20" />
I agree with Carol; main stream MU stores such as MAC, Merle Norman, Sephora, etc are usually very good for makeup advice. Some wig shops are really good too; I've had lots of luck with them. I also second Carol's recommendation for seeking out stores that specifically focus on transformation services. Good luck and enjoy yourself!