An update:

I've added OHLC/Candlestick charts. Bars are being created for bid, ask, mid and last price. The bars are updated in real-time as ticks come in.

I've attached a few screenshots.

Thoughts? 

http://www.btxtrader.com/

http://www.btxtrader.com/media/forums/candles.png
http://www.btxtrader.com/media/forums/periods.png
http://www.btxtrader.com/media/forums/ohlc.png