Thanks a lot guys, already had all those bookmarked. Was actually looking for another type of chart (will try to dig it up in Speculation), but I'm probably just to noobish to realise that the info on available coins can also be seen in the ones you posted.
So regarding
http://bitcoinity.org/markets:
Is the amount of available Bitcoins in each market indicated by the number on the y-axis on the left in the "cumulative depth chart", i.e. atm 5K+@Gox, 5K+@Stamp, 1,250@BTCChina?
Personally, I prefer
BitcoinCharts.com's depth charts because they're simple and intuitive.
Sorry, still not sure where exactly to find it in those depth charts.
https://i.imgur.com/cAvlk3A.png1= People willing to buy roughly 3k of Bitcoins at prices ranging from ~1,700 to ~2,400
2= People willing to sell roughly 2k of Bitcoins at prices ranging from ~2,400 to ~3,100
Am I reading that chart right this way?