Depending on your 401k, you should have options to invest in some interesting options. For instance, right now, I have the options of:
1. Standard lifepath plan (garbage)
2. Pick your own funds out of a list of about 40 (where I'm at)
3. Self managed, basically a stock account
If you're concerned about the dollar, find a commodities fund or put it into emerging markets.
BTW, I max out my 401k, company matches 50% of 6% (I put in 14%), and I have maxed out Roth IRA at 5k last couple of years. Unfortunately I'll be out of the Roth this year as there is an upper bounds for contribution.