March workout goal

While at the gym at couple of days ago, I started thinking of a grueling-yet-attainable workou0t goal for the month.

Because that workout (and most others) was cardio, I figured the goal should be cardio based; here's what I came up with:

7 hours of cardio minimum for the month. In addition, 100 miles of total cardio.

How this can be accomplished;
SIMPLE!
* Based on past results, I can complete 2 elliptical miles at a near "sprint" pace in about 16 minutes; a more relaxed pace is a 10 minute mile, thus if I complete 3 total elliptical miles a week, that's 26 minutes (in one week).
* 8 miles can be accomplished in 30 minutes (give or take) on the stationary bike; if this is accomplished 3 times a week, that's 90 minutes and 24 miles (in one week)

A one week total is 116 minutes, and 27 miles; multiply that by 4 weeks, 464 (nearly 8 hours) and 108 miles.

Wish me luck!
Hangtime

**Edit**
Week end 3/8:
30 miles/90 minutes

Week end 3/15:
8 miles/30 minutes

Week End 3/22
14 miles/59 minutes

3/23 -3/31:
14 mi/66 min