I've been using XP for a very long time now. 7 years on a dual core/Athlon PC has been good for what I've been doing, however... I've gotten into more dense productions lately with an old friend who has hired me to produce and engineer his newest project. I'm currently using Sonar 7, and I'm finally starting to hit the limitations of the RAM I currently have (4 gig total, 3.75 usable). Adding more RAM to this PC isn't an option, because XP would only ever see 4 gig maximum, anyway. Now...I do have a Gateway laptop, Athlon dual core, 4 gig Ram, running W7; so my first question is this: Can I add more RAM to the laptop? (understanding that I need to match the correct RAM chip with the correct slot). If so, how hard is this to do myself? I've been on the inside of many desktop PC's, but I've never been inside a laptop. Is this something I could do myself? Or should I have a pro do it? (I'm not completely computer illiterate... I've added RAM to desktop PC's many times, along with internal HDD's, various PCI cards, fans, power supplies, etc. but still, I wouldn't consider myself a pro at computer repair by any means). Now, if I do the above, and everything is groovy and the laptop sees and uses the RAM, what kinds of issues am I facing when loading 32 bit plugs that I have now into that new 64 bit OS platform? I've spent a pretty fair sum of money over the years on the VST's and VSTi's that I currently have on my 32 bit XP system, so will the new OS present any problems for me when I install these various processors and instruments into the W7 environment? My suspicion is that any DX or DXi's I have will no longer function in W7. I can live with that, as most of what I use are all VST/VSTi based anyway... but...they are 32 bit. I really need to do this upgrade. It's time. The XP platform has been very good over the years, very stable, very few OS issues... if XP would allow for RAM upgrades I wouldn't even switch to a new OS...but, it doesn't, and, Microsoft is phasing out XP support in a month or so, and I'm reaching a point in music production where the 4 gigs of RAM I have now just isn't cutting it anymore. The Laptop is a Gateway NV53, Athlon processor (Athlon II, 2.6 dual core, M300 processor), currently 4 gig of ram (3.75 usable) running Windows 7 Home Premium 64 bit OS. A total of 4 USB 2.0 slots are built in. There is no fire-wire port. Thoughts?