from Hacker News

curl -s 'http://pubapi.cryptsy.com/api.php?method=singlemarketdata&marketid=71' | sed -e 's/,/\n/g' |grep lasttradeprice | sed -e 's/:/\n/g' |sed -n 2p

I have added a XFCE panel widget displaying the price using the bash command :)