Yes, if you're making a 5 gallon batch, with as an example an original gravity of 1.050 or so, you could probably add a pound or so of sugar to the boil. Aside from maybe a thinner bodied beer, you wouldn't have much flavor impact.
I'd start with a little bit "bigger" recipe from the beginning like amandabad mentioned. Two cans of malt extract, increasing the hops (if not using prehopped extract), and then a pound of sugar would give you about a 6% ABV beer.
If you wanted to go with a higher ABV than that, then more malt extract would be needed and of course more hops if not using prehopped extract.
An alternative would be to find a good recipe or a good kit and make a beer that you'd really like. Since fall is here, I'd think of a big rich Imperial Stout or something like that. If you've ever seen the hundreds and hundreds of kits available at a place like austinhomebrew.com, you know you could find exactly what you are looking for, with great taste as well.
I really like this one, as an example:
http://www.austinhomebrew.com/product_info.php?products_id=13334