There are three levels:
25 prims for $75L per week
50 prims for $150L per week
100 prims for $200L per week
The SLURL will land you on the edge of the nightclub dance floor. The 25 prim shops will be to your left, next to the Twisted Co-Op Freebies area. The 50 and 100 prim shops will be right in front of you.
http://slurl.com/secondlife/Polimoc/66/168/22
Pay the box to rent, then contact Marie Resch inworld to get into the land group.
New renters get an additional 2 weeks free after renting!