after some thinking and input on here, i'm 90% convinced i'm reworking the spain part of my trip--details below. my question--as the renfe site is in spanish, i need some train in spain advice. using my basic spanish, i found that a train ticket from barcelona to granada is around 64 euros; from barcelona to madrid is around 120 euros (which seems like a lot) and i don't know that i've found one from granada to madrid. these are the lowest numbers i've found, but they are on a list of MANY different options, none of which i understand. basically i need to get an idea of how much transport would cost for the trip outlined below and advice on how best to go about doing that. do i get a eurail spain pass? buy point to point? what about seat reservations? these are all things i'm having a hard time figuring out (in spanish).
trip details--original trip: fly paris to barcelona, barcelona seven days, fly barcelona to london (i must end in london--this is non-negotiable) tickets already purchased on easyJet.
new trip plan: split eight days (monday through the following tuesday) between barcelona, granada, and madrid (willing to add/delete all but barcelona)
things that are negotiable--i've found an easyJet ticket from Madrid to London for 39 euros, and i'm ok with losing the barcelona/london ticket if it cannot be refunded (i do not think it can be) but i can't eat the cost of BOTH tickets. so i need to either fly INTO or OUT OF barcelona, as i already have tickets to do so.
EDIT--travel dates--august 2nd through the 9th or 10th. airfare--two one way flights, one from paris to barcelona, one from barcelona to london.