605 or 705...help!!!

[Erman_94]

Okay, I am set on either the Onkyo 605 or 705.

The 605 is $397 on Amazon which is almost too good to pass up for me.

I just wanted to know since the 605 only has 2 HDMI inputs if I were to take out one HDMI (let's say for a ps3) and put in an hdmi for a 360, would the settings i had for the ps3 be erased because i unhooked the hdmi cable? or would they be the same if i put the hdmi back in later?

I am asking this because the 705 is $640 (double the 605) and i don't want to spend all that extra money for an extra in

in saying that, is there anything special the 705 offers compared to the 605 that im completely oblivious to?

also, would the 605 or 705 last me longer in terms of its future proofing?

any help would be greatly appreciated (by the way, this would be my first ever receiver, so any newbie help is welcome too )