I get about 10k and 15k uniques per day. I charge direct advertisers between $0.75 and $2 CPM. I fully realize this is a pretty low number (considering how targeted the audience is) but I've spent some time contacting businesses and the only companies that can afford to pay me can only afford $1 CPM rates.
I basically get around a million page views per month, which is the figure I use when I sell ad space.
How are you selling your ads? Do you have your own ad server? You should really check out isocket if you're interested cutting out all the logistical crap. Granted I'm biased as the sales guy, but seriously, you should check it out/email me (jason@isocket.com)