The same company that delivers my fuel oil, also delivers diesel. I was lucky enough that the house I bought has a 275 gallon above ground diesel tank in my workshop, with a regular electric pump/meter/hose setup (just like at a gas station). (The tank looks just like a regular oil tank that you would have in your cellar).
This was definitely overkill when I just had my 27HP yanmar (I figured it would have taken me about 18-24 months to use that amount of fuel), but with my yanmar and my new machine, a 65HP JD, I figure I'll turn that over 2-3 times per season...now that would be a lot of fuel to haul back and forth in 5 gallon jugs (plus its about 10-12 miles to the nearest diesel station). My tank holds 18 gallons on the big rig and about 6 on the small one.
OK, maybe the 275 gallon tank is still overkill, but at least I didn't have to buy it myself!