When the weather warms up, check out the Lampasas River below Stillhouse Hollow. There's a park right below the dam. The water is usually clear and there are some good bass and sunfish down there (and carp, if you really want a challenge). Make sure the dam isn't releasing before going. I've been there when they started to release a ton of water, and the river went from wadable to cold and dangerous in about 5 minutes.
It's a bit of a drive from Temple, but the Brazos below Lake Whitney can be awesome. Largemouth, smallmouth, huge sunfish, and stripers (never caught any, but they're there). When Whitney Dam isn't generating, the water is gin clear and very wadable.