Amending with any and all kinds of organic matter will be your job! Bark fines are good, as is chopped leaves, compost, manure, on and on and on. Sandy soil is probably easier to 'fix' than a clayey soil because you can actually do damage to clay by 'overworking' it.

Loads of double- or triple-grind wood chips, when applied as a mulch, will shortly work their way into the soil system without you having to do much work. Plan on doing that every once in a while. It would be great to locate a source of compost.

Remember, even the addition of a little OM is a good thing for sandy soils, so keep it up and you will be much rewarded. I lived in an area of deep sandy soils for many years and learned to love the ease of culture. Now that I have a yard full of hard, red clay that I've had to figure out (!!!!) I think back on those days with a certain fondness.

You may also want to read the FAQ on the Soil, Compost, and Mulch Forum ;-)

Here is a link that might be useful: Soil, Compost and Mulch Forum

Add as much grass and leaves as you can. Is there a saw mill close by which will let you dig sawdust? How about a cabinet shop. A friend used to use the sanded sawdust from a cabinet shop. It rotted quickly. Ther is an abandoned saw mill in West Blocton where I used to get rotted sawdust. Chop up pine straw with a lawnmower and add it to the soil. Whatever you use, be sure to turn it under the sandy soil. Give yourself 2 or 3 years to amend the soil before planting.