If you are in to cordless tools you may check to see if you can just buy just a hammer drill without batteries on ebay to fit your batteries.
I'm a fan of 18v dewalt tools. I have a 1/2 inch 3 speed drill/hammer drill. Works great, can use a slower speed and not fry the bits. I picked up just my drill for around $100, no batteries.
If I have need to make many holes, I go for a corded milwalkee, which I've had for 20 years.