Powerhouse Fitness Complex  1st two weeks free. Payment allows usage at both facilities. Initiation fee: $39.  Monthly membership fee: $20 (from bank account/credit card) - additional family members or friends $15 each.  Annual membership fees (paid in advance): $200.  Only $180 each for family members or friends that sign up at the same time as MCard holder.  Other services include massage, personal training, child care, supplements/diet aides, and free beginners training programs. 2 locations:  22171 Pontiac Tr, South Lyon  248 446-1010 2258 S Milford Rd, Highland  248-889-8884