Personally, I like multibit.  I have been using it for a while on my first Macbook pro, because it only has a 128GB SSD drive.  I have even tipped the project!

Installing Multibit

One thing you will notice on Multibit or Electurm, is that after installing the software the wallet doesnt take long to sync.  This is because wallets like Multibit, Electurm and Hive are light weight wallets.

Windows

Mac:

Ubuntu:

Sending

Receiving

Backup up

Importing

Secure