$37 per hour for a freelance multimedia designer . Too low to high?

I'm testing out rates for pricing.

I have been told it's too low, which to me, means business :-)

I make $25 an hour at my current full-time position, so on my own $37 is the lowest I feel I can go considering the amount of my own studio space I occupy, my talent, and the load of awesome equipment I own that's always self funded.

Too high? Too low? What's the deal?

i think its great, wish someone would pay me that much