I have found most of my spices racks and wood shelves at Goodwill. This little guy I found for $3 at my local GW.
Craft Paint Storage with Wooden Drawers
Craft Room Organization - Paint Storage Box - Remodelando la Casa
Top 10 Craft Rooms
Do It Yourself Spray Paint Rack
Easy DIY Closet Organization Ideas on a Budget
Condo Blues: 13 DIY Craft Storage Ideas
15 Creative Craft Room Organization Ideas
Repurposed Craft Paint Organizer
Creative, Thrifty, & Small Space Craft Room Organization Ideas
51 DIY Ideas For The Craft Room - Organization & Decorating Projects