Any xecuter 2/3 chip will do fine. Xenium ICE is real good too and can be installed without soldering.
DuoX2 is a good cheapmod but does not have all the fancy features and not the same possibilities when it comes to bioses.
One that is very good and stable is Xecuter 2.6Lite. Won't cost you much either so... I would also recommend a harddrive upgrade....