What little time I have had to play some games has been taken up with a game called Giant Monster Rampage by Radioactive Press.
The system is simple (but not simplistic) and play is nice and quick. An interesting twist is that while it is technically a miniatures game it has been designed around using action figures for the monsters. Funnily enough I started looking on e-bay for some Godzilla toys when it suddenly hit me: kids... toys... TOYROOM!
I'm putting together a simple campaign system so that the kids and I can play a few games and make up a story as we go. I'll take some photos of the games in progress and the kids can make up a story book from it.
I picked up the two expansions Swarms (bugs and so on) and Red Alert (military) so I think I'll place and order for some 10mm Pendraken WW2 minis to help bring down the giant skeletal T-Rex that will be the main monster in our campaign. I'm also playtesting a new game called Power Warriors which is a stand alone product but is compatible with Giant Monster Rampage, this focuses more on your Dragonball-Z, TMNT & Ben-10 type characters.
If you like skirmish games in the Songs of Blades and Heroes style then I think you'll find something to like here. And it's cheap too at $9.55AUD for the core rulebook and $2.99AUD each for the expansions. Best of all is that if you have kids then you've probably already got all the figures you'll need, all pre-painted too :-).