Easy to use techno software on iMac Options

Hi, I have an iMac Power PC G3 and I'd like to make my own techo/dance music. I really liked the look of the eJay series however it's only available on the PC.

My question is are there any programs like eJay on the Mac? What I want is a program featuring lots of samples, ease of use (drag sample's to screen and place them where I want them) and covering a wide range of dance music (i.e. trance, acid, ambient, hip-hop ect). I'm a beginer so nothing to hard!!! lol

I'd also like to convert my songs on to CD-R, do most programs allow you to convert your song files into the file needed for this?

Thank you in advance for anyone answering my questions :-)

David.