good stock/bond mix?

[schwza]

i know this is a complicated question but i'm looking for a very simple answer. what kind of mix should i have in terms of stocks vs bonds?

here is my approximate current stock/bond breakdown:

- 40k in retirement funds (all international stock index funds)
- 100k in regular stock funds (mostly US index)
- 60k in massachusetts tax-exempt bonds

so total is around 70/30 right now.

i'm 27 now and i'm probably going to be using a chunk to buy a house at some point (maybe 4 years or so?).