cgx4 is still sold in places like amigakit.com , and is really really better than p96. I have both (p96 on picassoIV and cgx4 on g-rex4000D / cv64 / piccoloSD64)
CGX4 is always preffered by me, because of it's easy setting progs, and it's memory management... you might call it a personall taste, but for me cgx4 is way better.