Links for DSLR accessories:
Supplier for DIY rails and clamps Dragonplate
More Rods and Supports Express35
The Igus sliding system is the bases for many commercial sliding products
Hawkswood DSLR camera cables, clamps etc
The main supplier for rod connectors etc Elesa-Ganter
Zacuto Style rig at less then half price Gini Rig
Cheap follow focus system D-Focus System
Various grip equipment Cinescopophilia
More grip equipment, some the same as Jag35, indiSYSTEM
Cheap grip gear Hangrip