I have a FLU that over clocks to 166Mhz which is fine. If I was going to spend money it would probably be on a Zodiac 2 so I could enjoy both scenes (but alas I'm broke so no new gizmos for me for a long while).
Got a Non-Flu, Had it for about a year, But will definatley be getting a Blu when they come out, So clear and crisp.
Got myself a new Asus MyPal A620 400mhz PockePC recently (£170), To use along side my GP32 because of the lack of a light on the GP32. All i have to say is apart from the Compact Flash slot the Asus has (ie, Bigger cards), It just doesn`t compare to the GP32 for games and emulation. Apart from Age of Empire and a couple of others the controls and screen orientation are shite.
Oh and bigger movies.
I'm happy with my non flu. Never have any problems seeing especially after using a gba for so long. I might buy another one for 2 player if rf link is in snes and genesis