N64 Emulation Satisfaction

[Reaper]

Im new to the N64 emulation scene (but not new to emulation). Im having trouble getting about 50% of the games to run properly (the 50% I want to play). Perfect Dark, Pokemon Stadium2, Wetrix,Guantlet Legends and Mario party to name a few.

I have downloaded the latest PJ64 (1.5) and I have the following Emulators also

Nemu 8
mupen640.1
Ultrahle2064
Ultrahle
Corn
1964 0851
Suprahle (?) spelling may be wrong their.

I have a whole host of plugins that I got down for GPU, SPU, Glide and input.

Some examples of the problems I am experiencing are PS2 (incorrect graphics appearing in boxes and poor text quality) I did note that PJ64 states this rom has grahics issues (would a plugin fix this ?)
Wetrix - the menu graphics are buggy and the game runs too fast.
Gauntlet legends - The game runs at 4fps.

I wont waffle on about what is wrong with all of them though.

My sys specs are

AMD 1.2ghz
Geforce 3 Ti200 (latest WinXP whql drivers)
SB Live Value (latest Unidriver pack)
Win XP Pro SP1 With all the latest updates.
Direct X 9
I own a Gravis Eliminator Gamepad which works great.

Do you guys have any plugin/Emulation suggestions to get the most from the emultor?

Which one do you recommend...I have so far found Pj64 1.4 and 1.5 to work well.

Thanks for any help !

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**SH**