Finishing moves.
"Most of them are just a souped up takedown (stone cold stunner, hurricanrana, any suplex's) attack or perhaps a killing throw (Powerbomb, chokeslam, gorrila press slam etc.)"
You've forgotten submission holds which would probably fall into
either choke nnd ( Cobra Clutch, Mandable claw, Sleeperhold,
Oriental Spike) or grab type attacks(bear hugs, Crippler Crossface,
The Claw, Figure Four Leg lock, Sharpshooter).
As for house rules, I think Presense would be especially important. Not
only for intimidating/ impressing opponents (try to watch some tapes
of the Road Warriors/Legion of Doom or, if you can find them, early
Undertaker matches, especially the Jake roberts/Undertaker
fued. The image of Ut sitting back up after taking Roberts finisher
has to be worth +4d6 at least!) but could do the same to for
characters that can justify getting PC's into plots(Booker: "Hey
guys! You're going to face the Glory boys next week in a tag
match.")and give the players a feeling that through hard work
and dedication, they can have their characters reach the top
on their own, which definately gives the campaign a 'Real
Prowrestling feel' to it.
I would suggest giving each match or viewed incidents the pc's are
involved in a pre attack against a booker character and the fans. The
results would determine how the booker feels about the value of the
characters and how the fans react to the match.
You might want to search the archives here for a 'WWF Hero'
thread. It has some decent tips on running this type of campaign.
Hope this helps
David 'Fido' Lindquist