With downloading??? that is nawt heard very often. Lets see....how about IMVU? or Zwinky? research a few!
It depends what your doing if your downloading pictures that wont give a virus but if your downloading games then it probably will.
steel mario game
Some games that give you avatar rewards include Splosion Man and the Halo add-on, Halo Waypoint.
Gaia online is one...
RATAVA'' - (avatar backwords)
splosion man, left4dead2,halo waypoint,gears of war,bioshock,and that's it
not always depends on what website you are downloading it from and what you are downloading
well i don't think you can get clothes but, halo reach gives some helmets for your avatar
minecraft
No, Zune will not give your computer a virus.
No, but it it woth downloading the app iphonecake, this can be used to download games directly to your phone wether paid or unpaid.
There are not a lot of games that give Avatar rewards, but games such as Splosion Man will give you a shirt when completing certain requirements (for example, smashing your first pane of glass, or completing the multiplayer mode). The Halo add-on Waypoint, Left 4 Dead 2, and the new Lips game also has Avatar rewards. Check Out: http://avatarawards.ninjasfate.com/ lists all games with Avatar Awards and even shows them in most cases.