A bunch of my favorite UTAU makers made blogs, so I'm jumping on the bandwagon.
I should have Sachi's voicebank uploaded soon, and she'll be downloadable here. She's made from Taya Soune's voice, but she has her own voice files and runs on romaji instead of hiragana.
She has some problems with "ru" and "wo", but other than that she's relatively glitch free. I'll fix her eventually. Here's some examples of her voicebank:
Hare Hare Yukai TV size:
Cantarella:
Two years have passed.
12 years ago