Terrence,

I can give you some advice based on experience with this. (which version of
iPad to buy).

I had an iPad for about a year with no G3 so I had to buy a GPS - considered
Bad Elf and Dual.  Purchased Dual because it is Bluetooth - same price.
$100 approx.  It sits on the glare shield so always gets a signal.  Also I
use a small cigarette lighter inverter to allow a 110 V charger to the iPad
plus a USB charger to the Dual GPS.  That way I never have to worry about
taking them home to recharge or running out of juice because I neglected
this step.  Much easier to deal with.  I would not even consider the Bad Elf
since it has to plug into the iPad and keeps you from doing anything else
with the iPad plug while you're navigating.

I recently purchased iPad2 and got all the goodies with it.  Haven't
purchased internet service with it yet, but I really like the GPS element so
that I don't have to worry about the Dual GPS.  The iPad gets a position
solution in the car or anywhere else.  Easy to get spoiled.  Worth the extra
cash and I wouldn't go back.

Noting that you don't have iPhone  is another reason to get the G3.  So many
things the G3 gives you - if you have iPhone then a lot of the benefit is
redundant.  Without the iPhone, the iPad2 becomes even more useful I would
think.

JDB