I changed my configs so I can check the UU-Matter recipes on NEI.
Five UU gives you 48 Chiseled Stone Bricks! Didn't know that!
When we get Redpower again, you'll be able to craft your own chiseled stone blocks. I believe it's just four stone bricks on the crafting grid.
We'll also be able to farm mossy bricks/cobble and cracked bricks!
If I remember right, mossy stones are the trickier ones, since you need to find a dungeon and bring back at least one mossy stone to start the process. (Twilight Forest wizard towers are also a good source.) You place the mossy stone and regular stones next to water, and out of the sun, and the moss will spread. You can even farm it, with a cobblegen, some pistons, and some block breakers.
For cracked bricks, you place any old stone brick between lava and water. Then wait - Eloraam set it up so that the 'temperature difference' would crack the bricks over time.