Yes, since the demise of mame.dk, it has become more difficult (again).
Try at http://www.classicgaming.com/vault/ under the arcade roms section. While their collection is not exhaustive, it is extensive; and covers a majority of the classics.

Darren

> I have spent days trying to find roms for this thing ... everytime I click on a
> stinking site it's either gone or just a bunch of pop ups !!!! And the thing I
> hate most is the whole vote for me crap that I gotta do before I download the
> roms and EVEN WHEN I DO VOTE FOR THEM I STILL GET F*CKED UP FILES OR THE LINK
> STILL DOESN"T WORK . FORGET IT . I'm sicking to my Gameboy .
>