Is 200 megabyte data plan good for iphone 4?

[Grail]

I am getting this soon and I am mostly going to use it for the following:
-Youtube Videos
-Facebook
-Playin with apps
-Listening to music
-Texting
-Aim
Should I get the 200MB or 2Gigabyte plan??
Youtube Videos, Music, Texting, and Facebook are the major ones.

[Harry Teabagger]

2 Gigabyte. You will burn through 200MB really quickly doing all that.

[Maverick]

If you use youtube every day or about every day than you will need the 2 gb plan.
texting doesnt use data, playing music doesnt use data unless you download it via internet. some apps dont need data after its downloaded.