Mmm...
I agree that you should forget Kies/NPS software as their buggy, feature-less and bloatware. But the fastest way to access your SD card is to leave it in the phone, and conncect to it as an external drive from your PC. Yes you do need to install the USB drivers on your PC to connect to your phone, but once these are installed, you can copy/delete files to your hearts content. Just remember when you connect the USB cable to your phone, to then enable USB connection.
Menu
Notifications
USB Connected
Mount [x]
Secondly if you want to add/edit your contacts and calendar info, then do it from your PC by logging onto your Gmail account and access them using Gmail.
Firstly sync your contracts/Calendar to your Gmail account, log onto PC gmail and make your changes, then when complete, re-sysnc from your phone.
It's also a good idea to go into your contacts, and change any mobile Numbers to Type Mobile so your phone knows the difference between a land line and a mobile no.