dostol,
Do we have it correctly that you are you still defending your position that:
"I would recommend that's it's 1) a hammer drill (obviously)"
and
"It looked like you're still not sure about whether to use a rotary hammer (which is a light version of a jack-hammer) or a hammer drill (which is what you need)"

You still seem to have a lack of understanding about the difference between a "hammer drill" and "rotary hammer drill." Instead of standing by your gut, why not do your own research or read my post, above.
You can try to convince us with how many thousands of holes you've drilled and how fine your gut is.
Why not try to persuade us with facts and then cite your sources. That doesn't mean "Joe" and "Fred" on the jobsite who refer to the tool as a "hammer drill" becuse they don't want to utter the extra syllables of "rotary hammer drill."

On the job they're called roto-hammers. A hammerdrill is something your little Dewalt or Milwaukee drill comes equipped with. Out climbing we just call it the drill.

Have you tried this strange looking drill? I hear it works great on most types of rock, doesn't require batteries, is super light, and will do exactly what you need it to assuming you use it correctly. It even has a trigger thingy like the rotary hammers.

#1 Drill Submitted By: Jake Jones on Oct 14, 2011

Demo Hammer- Non-rotating chisel bit hammering.
Roto Hammer- Powerful hammer action with rotating drill; often has a switch to put in Demo-hammer mode
Hammer drill- light duty hammering drill action, basically meant for 1/4" holes (blues and screws or nail-drives); will also usually operate as a regular drill.

-Edit- removed the part where I was a dickhead

Also for reference:
www.us.hilti.com/holus/page/module/product/prca_catnavigatio>>>
www.boschtools.com/Products/Tools/Pages/BoschProductCategory>>>

what is the difference between the c-1, c-2, and vsr models of the Bosch hammer drills?

"VSR" represents "Variable Speed Reversing"
C-1 includes one battery.
C-2 is a kit which includes two batteries.