[WINTERS]

Your game sounds alot like mine. Here is what we use:

20 - 25's ($500)
20 - 100's ($2,000)
1 - 500 ($500)
2 - 1000's ($1000)

Blind Schedule (10 mins)

25-50
50-100
100-200
150-300
200-400 - 50 ante
400-800 - 50 ante (color up all $25)
500-1000 - 100 ante
600-1200 - 100 ante
1000-2000 -100 ante
1500-3000 - 200 ante
2000-4000 - 200 ante

This game lasts around 2hrs for 10-15 people. You will need the following total chips:

300 - 25's
300 - 100's
50 - 500's
50 - 1000's
-----------------
700 - total chips

Hope this helps!