Is there any way to hide plugins to certain user blogs on multisite?

I see network activate every time I install a plugin, that seems to be the only option! Is there any way to hide plugins from certain users that have blogs on my network? I tried using the Pro Sites plugin, but I don't want to charge people for certain plugins, I just want to hide most plugins that I use on my main blog from all other blogs on my network etc.... any way to accomplish this? Thx!