Dowload Rom Pokemon Soul Silver Help With Downloading Pokemon Roms?

Help with downloading pokemon roms? - dowload rom pokemon soul silver

Ok. I have a kind Awersome on YouTube that Heart Gold and Pokemon Perl donload helps. (ROM) in Japanese
I know that for download.
I just want to ask ...
Ask a lot of Roma or catch Mega Giga Bite Bite on your computer? Is it slow if you download a ROM Pokemon?
Does it contain viruses?
Or is it better to buy the game and a DS?
What is the price of the DS in the UK? (Books) (DSI NO!)
Heart Is pokemon gold and Perl good for?
Please tell me. I want to make the right choice.
Thank you!