2GB RAM

I might buy a iMac G5 iSight. I would probably upgrade it to 2GB RAM. Well, i usually have InDesign, Illustrator, Photoshop, MSN, mIRC, iTunes and Firefox opened at the same time. I have now 512mb of RAM and its soooooooo slow. With 2GB, is it too much for what I am doing with it ? If not, will it run really smoothly ?
Thanks =)
  Windows XP Pro  

Hello and Welcome to Apple Discussions. 
1. Crucial guarantee their RAM works with the model of Mac you state.
2. You won't see any performance increase using PC2 5300 as the iMac G5's memory bus is forever stuck at 266MHz (i.e. PC2-4200 RAM). It may be worth getting the PC2-5300 to improve it's re-sale value and if you may move to an Intel-based iMac in the near future where it will be compatible.
mrtotes

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