A few things:

1. Would it be possible to show current network hashrate for each of the coins? That info would be AWESOME for judging overall coin health but may be a bit out of scope to coinchoose (if you do it, a graph like you have of the prices would be the cat's meow).

2. What about total market voume trade (in BTC) for each of the coins over the past 24 hours? Another crucial bit of info in deciding which coin to mine.

3. Total coin marketcap would be a valuable one to see too... not as crucial as the first two.

The FTC fiasco fallout and cleanup should be fun. I'm mining DGC myself.