If you happen to have more that one component in your home theatre, having a universal remote is a must. I will hop on my fanboy train—choo choo!—and offer the Logitech Harmony 550. Dell Home is featuring this remote, which retails for $150, for $90, after $50 of instant savings, and $10 off with the coupon code X$NBJ52RR6HH36.
The best feature about Harmony remotes has to be the painless setup. Plug the biznatch into your PC via the included USB cable, tell the software what components you have and wham, bam, thank you ma'am. Everything should be ready to go.