replace the ac or not?
I am 2 months from completion of my new home. My existing home which i am planning to sell (in the $170 k range) has a 15 year old ac and furnace which heat and cool OK but are noisy. Should I consider replacing the ac before I put the home on the market and hopefully use the federal tax credit to reduce the purchase cost? Even after the credit I may be spending 3-4000 out of pocket. Is it likely to be a good or bad move? The housing market is fairly OK here(Arkansas) and houses are selling, but I am afraid the old ac may be a negative. Thanks, Paul