Euro, Yen, Dax, Nikkei 225 on Singapore. It just depends on the given day and the time at which you refer to. That's a pretty wide time frame you are referring to. That's a good starting point though.
Thanks, Where is the best place to get historical intraday data on these markets to take a look at how tradable they seem?
gold and silver have recently been decent volume but the spreads have been a bit extreme at times so you would have to consider slippage from these spreads against the overnight range
I would be very cautious trading Gold/Silver overnight unless you know the markets. Even Mr. Seth concurs! http://www.elitetrader.com/vb/showthread.php?threadid=67819 EuroFX is your best bet!
DAX liquidity really isnt great. If you want liquidity then the bund (gbl) and estx50 (like the dji for europe) have much better liquidity than the dax or even the eurofx during the european morning. And the SGXNK (singapore n225) has much better liquidity during the asian period. HSI is also fun during that period (my poison of choice).