I did some work in my den and about half is old plaster with a bumpy texture and half is new smooth drywall. My options are match the texture or topcoat the texture to have smooth walls. i've attached a picture of the texture but i'm not sure how well you're going to be able to see it. top coating all the bumps with drywall mud doesn't sound like fun so if i can texture match i think that would be easier. thanks for any advice!