Dark Spots

Our house is definitely a work in progress (even though we've now lived here 6 months!) N and I have a dark spot in our living room. It's the end with the L-shaped couch, and while we've tried using an end table with a lamp, its just not throwing enough light to the dark corner. I've decided we need a lamp behind the couch. I think we're going to go with this one:

Brushed Steel Arc Lamp, available at Macy's (on sale now, plus free shipping!)