Help on Comics?

Hello I am interested in purchasing the x-men comic books, mainly Age Of Apocalypse and Onslaught, does anyone know where I can purchase these from, I want the whole saga/series not just a few of them, will it matter if I haven’t read previous series to these, I am just interested in these 2.

I would like to know the costs, how many to buy.

Also does any one else recommend any good sagas simillar to this.

Sorry for English cant explain it well.

Feel free to merge, but just felt more people would reply like this, cheers.

aoa it wouldn't matter much .. onslaught it might get confusing.. where are you at? what state?

I live in the U.K, not really bothered if it gets confusing as long as i get the gist of it, cheers.

Mabye you should read Ultimate Xmen, it;s fresh and new yet borrows from the old school xmen quite a bit... the way they were envisioned back when they first appeared.

get essential x-men or ultimate, it's good