basically, shariah law stated muslim can only marry muslim and ahli kitab,
but i believe the latter option quite rare, only several countries allow like faidzal said..
because most islamic scholar claimed that the original teachings of the religion of the books already corrupted..

but not every country practices shariah law, so muslim and non-muslim marriages is possible..

few pages back someone mentioned muslim can have legal harem..haha
to acquire one is already hard, let alone two..
unless u r seriously richfag like salih yaacob..