I wouldn't get the A-5 due to the fact that the minimum delay is 1 minute. Also I heard it has a loud "clunk" sound with every picture taken.
For $30 more you can get the D-333 which has a lot more features.
If you want to spend less money look at the Primos Truth Cam 35, which Midway has refurbished units for $50 each. Decent cam for the money.