I'd like to give my opinion on this.
I'm relatively new to the country. And always considered baseball as "funny" sport, more like outdoor activity. But thanks to the Barry Bonds, I started to watch it. It was when Giants got to WC.
I will give him benefit of the doubts, for that. I like watching him play. I haven't seen him when he was younger, but saying he got bigger is laughable, since I can always look to the mirror and my photos 10 years ago.

To me, the whole story looks like the witch hunt. I admit, his connection to BALCO are suspicious, but it doesn't proof anything, only raises some questions.
Also, I'm very confused about the needs to have steroids in such static game. I mean, they are standing almost all the time, and the only position that may require some help from drugs are pitchers. Those players that were using steroids are pretty much wasted very quickly. I didn't see Barry Bonds wasted, and if he was using steroids all this time - he should be wasted at this age.
And what confuses me more is that there is a sport in USA, where ALL the players are chemically induced people - it's what you call football here. The way those players build - no way on Earth you can do that by mere training. They look exactly like those weight lifting "athletes" in Olympic games - almost all of them were stripped of medals and many were banned from sport.