You really need a climate controlled environment to prevent corrosion, and store powder. I recommend GI ammo cans for storage of powder and primers.
If you don’t have table space, think pedestal.
http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=155024&t=11082005
Midway USA sells benches too. http://www.midwayusa.com/esearch.exe/search?search_keywords=loading+bench&category_selector=all_products But you don’t have to buy them.
A folding table ain’t gonna cut it. I picked up a a solid core door on clearance at Lowe’s a couple decades ago. 4x4s for legs and 2x4s for bracing...