I would go with PS3 just because with those specs it would probably be higher quality on PS3, plus you can sit back and play while you sit on the couch
Well if you want mod's then pc is only option. Laptops are hardly ideal for pc gaming though. But i guess there are plenty of people that get by on them. From a hardware point of view ps3 is probably better bet at least when it comes to stability. But yeah mods are a big deal for me, but then i have a gaming desktop.
i heard that they wanted to put mods out for the consoles which would be awesome but they didnt know how to make them secure and wont destroy your game if you dl them so. they will be out after release if they do go out for consoles
I'd recommend the console based on if you have a good TV have invested into console have a decent size library But if you have the PC rig are into mods and like or can deal with mouse & keyboard then PC
P.S. Me personally going with 360 i.e. full install play via HDD
I'd still go with PC, though. It's seriously worth it. Upgrade your pc a bit, and go for it! I'm going ps3, though. My old job based alot around mac, so I have mac. If I had a decent windows machine though, I'd go for PC.