Dual boot partition question

I plan on doing a clean install this weekend/next week of Lion/Win 7. I've a 128gb SSD, which after formatting I estimate ~110gb free. I've been a lifelong Windows, so I'm still not sure as to what's better on what, therefore I'm absolutely clueless on partitioning.

I know the Win7 OS would be 15-20gb, does anyone know how much a fresh Lion install would be?

And as far as applications go, I think I'm more comfortable in a windows environment, so all my IDEs would be there. I think I'm going to do a 40gb/70gb split mac/windows, would 40gb be enough for OS + the usual? Are there any Mac apps/anything that would take up a large chunk of space that I'd need?

I'm going to have music on the HDD in the superdrive, would there be any conflicts reading music [via iTunes] from either windows or mac?

 

After clean installing Lion, my Mac partition had around 20GB of used space on it so Lion will take up about that much including the iLife set of programs (iPhoto, iMovie, Garageband, and there might be one other in there). My usage increased to 29GB after installing Office 2011, iWork 09, and a handful of other apps (Handbrake, VLC, GIMP, and a few versions of Angry Birds).

You won't have any issues using two different versions of iTunes accessing the same music files so long as you don't physically move the files. In other words, if you place a file in M:\Music\Artist\Album\Song.mp3 it needs to stay there. Moving it in Windows will cause iTunes in Mac to freak out and vice versa.

 

Alright cool, 40gb should be plenty on the Mac partition then. I wish Apple worked on compatibility with professional software a bit more... instead of going off trying to create their own remakes of everything. :/

 

what like Microsoft does? oh wait.. they don't either, its just the software companies that write for Windows.