Hey guys,
I'm looking into mining and i'm unsure as to which coin I should be mining. I have definitely missed the boat for bitcoin. Can litecoin or Namecoin still be mined on a weaker computer? I would prefer not to mine on my laptop which actually has decent specs to it. Maybe I should mine one of the newer currencies? Any help would be appreciated.

Edit: Woops forgot to mention I would be mining on my weaker desktop computer that is used for absolutely nothing since I am away at university all year. Its a pentium D 2.66 GHZ CPU and an old ATI GPU. I realize this is really old but if it was left on day and night for months would I not be able to get any decent mining from any coins?

Also to add, I do not pay any electricity charges so there is no worries about that.