I usually use two trainers, in conjunction with each other: The Phantom Menace Trainer + 19 by TomT64 at
http://www.gamehacking.com), and the Red Arrow Trainer by Phantom at
www.gamecity.da.ru) (
http://www.gamecity.da.ru)
I use the Red Arrow trainer to freeze health and ammo at 90000, and the TPM+19 trainer for weapons select. The Red Atrrow trainer is necessary because the other's "freeze health" option makes you wait a little before regenerating, so you aren't invulnerable.
I have yet to find any better trainers.
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At last we will reveal ourselves to the Jedi.
At last we will have revenge.