I have an account with a bunch of mutual funds - it is
the public employee equiv. of a 401k. We get to choose options - Large Growth, Large Value, Mid/Small, International, Medium term fixed, short term fixed, Balanced (a combination), total Stock Index and one other I can't think of now.
I have split my monthly contributions between Large Growth, Large Value, Mid/Small and International for a three years now. Put all but International into the short term fixed (a money market fund, basically) a few weeks ago, but did not change the allocation of my monthly contributions.
So far, I likey. Since it is pre-tax money and it is an unqualified plan (no penalty for withdrawal before age 59.5), it is one of my favorite things :).