How many chips should I get, and how many of each denom?

[FishHooks]

I'm doing the group buy on ASM chips and I'm trying to decide how many chips and how many of each denomination I should get, I'm getting these chips for cash games of holdem. I want my chip set to be very diverse so I can play many different limits from 1/2 up to 5/10. I currently play 2/4 online but i'm going to college and i want to be able to accomidate the type of game I can get together. You would be suprised at how many people in college play stakes like 5/10. I'm looking to buy chips in the 500-700 chip range. My current thoughs of chips breakdown go as follows:

200 white ($1)
150 red ($5)
100 green ($25)
75 black ($100)
By the way I am getting labels made for this set.
Maybe I need more red chips so I would have enough for a 5/10 game in the future? Also many people are buying plain gray chips as quarters but the only game that would be used for is 1/2 holdem where the SB is .50 right? Or would you buy them so that way during the 3/6 and 5/10 you can have a SB that is exactly half of the BB or should you just leave it and use the traditional blinds. For 3/6 blinds would be $3 and $1 and for 5/10 they would be $5 and $2. Any thoughts..... Thanks