Paint and brush supply

[RLGfx]

Hi all.
I've just started painting with waterbased paints, and so far am liking the ease of use and clean up, but still getting used to pressures and mixing ratios for paints.
Question is, where does everyone get their paints from? I've been using ebay but the supply of certain colours can be a bit sketchy if i dont pay for delivery from overseas.
Any hints?
Attached are some pics of my water based efforts!