Black Buccaneer [PAL|E]
ESPN NFL Football [PAL|E] (I have the [NTSC|U] version but believe it has issues with region 4 consoles)
Dance: UK [PAL|E]
Die Hard: Vendetta [PAL|E] (A version that has not been cracked)
Get On Da Mic [NTSC|U]
Lawnmower Racing Mania 2007 [NTSC|U]
Rugby League [PAL|E] (A version that has not been cracked) can be the one named NRL as well
UFO: Aftershock [PAL|E]
I know this list is rather small but these are the ones I can't find myself I managed to get every other english released game, though some are PAL rather than NTSC but this is not an issue as those that I could only find the PAL copy of that got an NTSC release as well work fine in NTSC mode
My console is a PAL console but with the Enigma patch to Video NTSC applied, this however does not change the XBE region code that is 4 for PAL UK and 1 for the NTSC US