Switch from static to GetSimple with about 200-400 pages

[suntrop]

Hi there.
I've got a website with about 200 pages (another 200 will come the next weeks).

• Does GetSimple can handle up to 500 pages without any drawbacks?
  
• All pages are based on Dreamweaver Templates. I want to do a Search&Replace to replace my header/footer with the corresponding XML code.
  

Please, can you give some thoughts/experiences about this? Would love to hear about it!

Thanks!
suntrop