As always, lots of great suggestions & ideas here. I'm a HUGE fan of
The Loop Loft; they make a TON of great drum loop/sample sets that are easy to use; sound GREAT; and have great feels (assuming you use the loops and don't program yer own beat using the provided individual drum samples). Of course, a great feel CAN be achieved via programming yer own beats but it takes some time and lots of trial & error to get it right.
I noticed the OP mentioned something about doing a simple blues shuffle. The Loop Loft recently released a new version of their Blues Drums sample set; I own
Vol. 1 and really dig it for a number of reasons. You can hear samples of the loops on the page I linked.
Just FYI, the Blues Drums Vol. 1 & 2 sample sets are only merely scratching the surface of the depth The Loop Loft provides in terms of their sample sets. In the last six months, I've purchased not only Blues Drums Vol. 1 but also Dirty Drums Vol. 1; Indie Rock Drums Vol. 1-3; Dry Drums Vol. 1-4; Rock Steady Drums Vol. 1; Double Drums Vol. 1 & 2 (SUPER cool sample set featuring two drummers playing at once); and Hip-Hop Drums Vol. 1. They come in a variety of formats (some even come as Refills, which I prefer as my main DAW is Reason 8.1) as well.
There is another company making some really interesting, mix-ready drum sample sets: Nucleus SoundLabs. I bought their
BFD Core Refill about 18 months ago and am just BLOWN AWAY by the options they provided. Similar to the
Jason McGerr Drum Sample Set I bought directly from Propellerhead, the BFD Refill features a MASSIVE amount of velocity level samples for extremely realistic programming. It's great.
Hope that helps!