In reply to JohnnyW:
the lamb and flag in covent garden is pretty cool, featured in dickens novels as he wrote some of them there.
then the french house in soho, on dean street, a cell of the french resistance was based there during the war!
the porter house on maiden lane in covent garden, they have bands on and its pretty nice.
the great queen street restaurant (number 32 great queen street) has excellent cocktails and the food is pretty ace. I ususally go there for an espressotini before going out for dinner!
all of the above can get busy but thats all I know of as the parents live on kean street so they are all super close.
food wise I think that you cant beat home slice in neals yard for decent pizza and on tap presecco, busaba eathai on floral street for good thai food. then you could try sofra for decent greek, meat market for sleezy but delicious burgers, cote for decent and cheap bistro french food all of which are covent garden.
for breakfast (i have been told dinner is good too but I havent been) try the delaunay restaurant. the eggs benedict is outrageously delicious!
have fun
Rob