Any Decent Sounds. Options

[tom2323]

got an imac g4 with logic 4.8 platinum and an oxygen 8 midi keyboard. problem is i don't have a manual for logic. i can only use the quicktime music for sounds, how do i get new midi sounds and install them for logic. also how can i sample something like an audio c.d and sample a bit and get it on to logic? not sure what else i might need and to be honest feel like there's a higher force trying to delay me from using logic!!!! is there any other vital hradware or software i need and if so what is a reasonably cheap option? can only access the net on p.c, is it possible to burn things from p.c and use it on mac? cheers, sorry for being such an amateur.