How do you configure windows to store the bitcoin blockchain data into another directory? I'm currently on windows and was wondering how do you make the qt client download the blockchain data to another directory? Since my main drive is a SSD hard drive, I don't have much space to spare. How would I configure this to make it download elsewhere? 

Also would this apply to other qt clients like litecoin, ppcoin, etc?
Add '-datadir=path-to-directory' to the command used to start the client.  For example,

bitcoin-qt -datadir=D:\Bitcoin


to store the bitcoin files in the D:\Bitcoin directory.  Remember to enclose the directory path in double quotes if it contains spaces.  Also move the subdirectories as well as the main application directory to the new location.