What's the best scope to go with??

I am planning to get back into Astronomy after a 20 year lull. I had one of
those Jason 60mm reflectors back then. I just got the Orion catalog and I am
mulling over several choices. I got three kids too, so will take that in
consideration for a scope. First, there is the portable StarBlast for
$169....then there is the SkyQuest XT4.5 for $199....BUT I see in their new
Holiday catalog that the SkyQuest XT6 is on sale for $239, and the SkyQuest
XT8 is on sale for $339. Those are the four I am looking at. The XT8, though
a bit expensive for me....is intriguing as I bet one can see alot with it.
But it must be heavy. The StarBlast
and XT4.5 are cheaper and more portable but not sure which to go with there.
XT6
may be the best deal as it is $60 off its regular price. Is the XT6 heavy
and not portable? How does the XT6 compare to the 4.5 and 8??? Anyways, any
opinions appreciated. All are reflectors. XT's are Dobs. Plan to make the
decision by December.