If you're interested in shelving that you can design to fit the available space, I've used this Bulk Storage Rack, it's very industrial looking and similar to warehouse pallet rack, but lighter duty. But still very sturdy, built like a brick shithouse, can hold several tons of stuff, you can climb it without any fear. I went with particle board inserts for the actual shelf that fits perfectly flush in the metal frame/supports.
Takes a bit of understanding of how the various pieces are put together and their dimensions to figure what you need and what will fit.
I went for this after first looking at some metal shelving units from Costco and the various home stores, and felt that they were too limiting as far as size went. This was much more configurable and much higher quality. It was local enough to me that I picked up the order, so I don't know what shipping might cost. There might be a similar place local to you if you decide on this type of product.
The downside is that it's totally open, no backs, sides or doors, and the bottom shelf is the garage floor, although I did put some thin particle board down on the floor to form a cleaner bottom shelf to all things to slide easier.
http://www.westernshelvingandrack.com/bulkstoragerack/