A diamond blade bandsaw is my tool of choice but you could easily do it with a wet tile saw for much less money. There are a lot of demonstration videos on youtube.com that will show you how to do it safely.... I shared my own first experiance cutting with both in this thread here.
http://canreef.com/vbulletin/showthr...hlight=bandsaw I've cut a lot of different LPS coral since then using both of these tools with 100% success.