http://www.space1999.net/catacombs
The most comprehensive and best organized Space 1999 website. Invaluable!

http://homepages.tesco.net/d.sisson
(David Sisson Models) Fantastic site of original and replica Gerry Anderson Models.
Site includes the Holy Grail of all Eagles: The original Eagle 1 !

http://tobor2.com
The Eagle models on this site set the bar for quality workmanship. Recommended!

http://www.armortek.co.uk
1/6 scale fully machined metal Armor kits.

http://sheperdpaine.atspace.com
From the mid-70's; these "story telling" dioramas inspired many modelers.