IMO, all the AOSP roms for froyo are all the same minus a few things
IMO all the blur ROM for froyo are all the same minus a few thing
basically, if you got bored with the custom ROMs, you are going to have to switch it up a bit.
i suggest slapping Gingerbread on there. completely different look, with the new moto blur which is actually pretty good. it is faster than froyo, better battery life ect. there are only a handful of themes for it, and only a handful of ROMs for it.
if you are still bored, look into bootanimations, icon packs, app modding, widget modding ect. these phones are great, and have tons of things available to make it how you want it to look/act.