One real area of concern should be your banking relationship. Banks are not leaning to do much business with the construction industry. Don't push them too far or they may decide they don't want to be in the industry any longer. What you don't need right now is to be looking for a new banking source. Keep the current relationship strong, get them your info on time and keep your books clean. Don't overextend yourself if you can help it.
Manage your business, watch the cash flow, keep expenses and cash commitments at a minimum and you should survive 2008. Now, 2009 is another story.