The 3D foamy stuff rocks. all fly well.
Other sites worth a look with some plans are foamyfactory.com and 3dbatics.com
The foamyfactory mini 3dx is awesome.
As mentioned by bdavison, you will need foam safe CA, and something like UHU POR, a foam safe contact adhesive.
I use a hot glue gun in some areas, but it takes a bit of practice to get it done neatly, and light. Dont forget to get some carbon fiber stuff, depending if you using 3mm or 6mm Depron.
if you looking to buy some foamys, the Charger stuff looks very good and from reports are excelent flyers.
chargerrc.com

The Ikarus Shock flyers are great, in particular the Yak 54 and F3A.