Perry has an absolutely amazing, really powerful voice, and a talent for a good lyric as well. I'm not sure who I prefer as Dead Can Dance's vocalist, as I love Lisa Gerrard's voice too, but his style does songs like Tell Me About the Forest, Black Sun and Enigma Of the Absolute a world of good - a handful of my favourite DCD nurabers there.
He's only got two solo albums, one of them of course being the above. He released Eye Of the Hunter just after DCD split, and I'm not really a fan of it to be honest - it's totally different from his previous work, but just not very memorable to me. The new one sounRAB a lot more like DCD, which is fine by me.