Official from member's subscription page:
Unlimited Streaming - $7.99 a month
1 DVD out at-a-time - $7.99 a month
2 DVDs out at-a-time - $11.99 a month
3 DVDs out at-a-time - $15.99 a month
4 DVDs out at-a-time - $21.99 a month
5 DVDs out at-a-time - $27.99 a month
6 DVDs out at-a-time - $32.99 a month
7 DVDs out at-a-time - $37.99 a month
8 DVDs out at-a-time - $43.99 a month
Unlimited Streaming+ 1 DVD out at-a-time - $15.98 a month
Unlimited Streaming+ 2 DVDs out at-a-time - $19.98 a month
Unlimited Streaming+ 3 DVDs out at-a-time - $23.98 a month
Unlimited Streaming+ 4 DVDs out at-a-time - $29.98 a month
Unlimited Streaming+ 5 DVDs out at-a-time - $35.98 a month
Unlimited Streaming+ 6 DVDs out at-a-time - $40.98 a month
Unlimited Streaming+ 7 DVDs out at-a-time - $45.98 a month
Unlimited Streaming+ 8 DVDs out at-a-time - $51.98 a month
1 DVD out at-a-time(limit 2 rentals a month) - $4.99 a month
Starz Play Only (no DVDs) - $6.99 a month
"No job too big; no fee too big!" -- Dr. Peter Venkman, "Ghost-busters"