Gold? Maybe, but it's going through a bubble cycle right now too. Plus transaction fees... cost prohibitive. Then moving back into BC will be a hassle too.
Digital gold, like goldmoney? Maybe. But I can't do a straight goldmoney to BC buy later on.
Silver? Same issues as gold.
Platinum might be an option, scarcity and the number of fairly unique industrial uses really help to set function price floor. That along with gold and silver are things you can take to a local coin dealer or pawnshop to get cash as long as you take acquire bullion. A healthy mix of metals can help lessen price shocks. As long as there's a dealer near you it is hard to beat the liquidity.
Digital Gold and anything like Liberty Reserve I'd avoid as long term stores of anything. They might be useful to put something in to pull off a transaction, but the risk of them becoming useless is necessarily high.
Can tell I haven't slept in a while; I saw "liquid stores of wealth" and thought you'd be extolling the virtues of stockpiling vodka.
Cashing out some bitcoins to build up the liquor stock wouldn't be a bad idea right now.