How are the pc requirements on those cause atm i can't do any high end graphics till i get some cash to upgrade.

sounds interesting i'll have too look into that one

WiC is amazing!

I've still never tried World in Conflict or Universe at War....

That was meant to say I enjoyed Rise of Nations....

or anything from the CnC series. Depending on who you talk to, will see you hearing that Generals is the best, while others will say that RA2 is the best, and then others [like me ] will say the Tiberium Wars is the best. The reason i like Tib Wars the best is that it is up-to-date with certain elements, and is well-rounded.

On the note of Micro-ing, they're not too bad, Generals has 2 types of resources, Supply Depots, and other Army-Specific resources [GLA have Black Markets, China have Hackers, and US have Supply Drop], while the Tiberium series have, well, Tiberium to mine, the green being more common, while the blue being more profitable. The Red Alert series follows suit with Minerals instead. Gold being common, Coloured [sapphire, emerald, ruby - they're all mixed in] being profitable.

You'll definitely be able to play Red Alert 2 and downwards, Generals, maybe not, but its got a few years on it so more than likely.
Try looking for the Command & Conquer: The First Decade. It's dirt cheap, and comes with the entire series up until Generals. It also includes all expansions, and they're all fully updated. Alongside this it comes with a nice Extras DVD, which has interviews and the like.

But World in Conflict, Dawn of War, and Company of Heroes are good bets too [although fairly recent, so try 'em after you upgrade ]. You should also take a gander at Starcraft and Warcraft, they're pretty good [hell, they still play SC and WC3 at World Cyber Games!!]