I was using simple ads for a display at the bottom of each

I was using simple ads for a display at the bottom of each page and was not crazy about the look of things. I think it was 250 x 300px ad display (I do have an adsense account). Do you think a 728 banner would be better or what other option

Would one of your other advertising plugins be a better fit? Trying to make the ads look as inconspicuous as possible.

Also is there a way for me to download all of your plugins in (1) swoop, so I can save in a folder and try out later?....instead of downloading 1 at a time?

Thanks,
David