Fedora 15: A Potential Savior?

One of my friends was showing me today a Gource-created video of his semester's work that he made on his Fedora 14 "Laughlin" laptop. It looks really nice, but even though it has a quad-core processor, 4 GB of RAM, and a very nice AMD ATI dedicated graphics card (I don't know exactly what model/specs), it still took a couple hours to do (i.e. far longer than it should have).
I told him that I'd love to be able to do a similar thing on my laptop, but given that it has even lower specs than his, it would take even longer. This is also because Linux Mint 9 LTS "Isadora" doesn't properly recognize my NVidia graphics card, so I can only use the Intel integrated card which works fine for me now but would choke under such processor-intensive activities. He then told me that Fedora 15 will have native support for seamless switching of graphics card drivers (especially these NVidia-Intel setups).
Linux Mint, I've loved using you for the last year and a half, but I'm definitely going to be looking into this more closely, because I really do want to use my laptop to its full potential in Linux. If Fedora 15 is relatively stable, I'll probably be using it until Linux Mint gains similar support (and if it comes in the rolling "Debian" branch, I'll just use that then). In any case, I'm excited!

NVidia, Linux, and Hardware Acceleration

When I got my Asus laptop, I immediately installed Linux Mint 9 "Isadora" GNOME and searched for the proprietary NVidia graphics driver. For some reason, at that time, nothing turned up. I didn't really worry about it, as I could enable 3D acceleration and desktop effects anyway, and they worked really well, as they still do. A few days ago, I got the idea of looking again to see if I could install those proprietary drivers, as those might give my computer using Linux Mint even greater graphics capabilities. To my pleasant surprise, this time, the drivers were found and had already been downloaded; all I needed to do was click "Activate", and I did. I then restarted the computer and logged back in, only to find that I could no longer use desktop effects. Well, that was strange. The thing is, I have 2 graphics cards in this computer (an NVidia GeForce 310M and an Intel GMA 4500); Linux Mint recognizes both (as tested in the terminal), but I don't know for sure which card is being used. Furthermore, deactivating the driver brought back desktop effects. Has anyone else had similar issues? Does anyone else know what to do in such a situation? Thanks in advance!