What asset allocation is best for me?

[BuckeyeFinance]

Currently:
Vanguard Large Cap Index Fund (100% stocks) - 9,500
401(k) & Roth in Mid Cap Index Fund (100% stocks) - 17,000
Checking - 3,500

I'm in my mid 20's and I don't own a home. I have a stable job and have been promoted within the last 15 months. My monthly expenses are ~$1,400. I'd like to have the option to buy a house in the next 1-3 years. Should I reallocate?

[forummm]

bogleheads.org/wiki/investment_policy_statement
http://www.bogleheads.org/wiki/Bogleheads%C2%AE_investing_start-up_kit

Separate the money you're allocating towards retirement (probably 80-100% equities) from the money you want to save for buying a house (something less aggressive if you're certain you want a house on that timeline and want to put a lot down).