Buying PS3 Need some info from owners

[smith1080p]

Ok later today i am going out and buying a ps3...I'm getting the 40 gig one
I dont play games much but i liked playing call of duty 4 and rainbow six on my friends xbox...I like watching blu ray movies so i figured ps3 would be cool plus you get online updates and the bd live stuff...

Anything i need to know...Is the ps3 the exact same player for blu ray as the stand alones...like the bd s300
I will be using it in my living room and it seems to be smaller and nicer on the eye.

I might buy a game or 2 also. cod 4 or uncharted maybe...

Is the 40 gig ok to get...i dont need backward compatible...just something to watch blu rays in on my hd tv..and use surround sound on.

i figure 60 and 80 is better but i dont have that money for that kinda item right now.

Thanks any info to make my purchase easier is appreciated
And what do i need if i buy the 40 gig
ethernet cable and blu ray remote?
any certain type of ethernet cable???