Macintosh Operating System OS X 10.4 Tiger (Intel)

This is some screen have been taken from MacBook Black. I am pretty new at macintosh and some of the settings is totaly different than the pc based which is the Windows. i really like the interface of the operating system. One problem which the MacBook is the RAM. Although, 512 MB of RAM is enough to run windows XP but not for MAC. 512 Mb of RAM is not enough. You need at least 1 GB of RAM. but well, for me to upgrade the ram will cost a lot of money. Since it is running on Intel Core Duo, the RAM will be pair 256 + 256 MB 667 MHz SO-DIMM DDR2. which totaly different with the PC DDR2 RAM. just to upgrade to 1 GB is about RM450+- and to 2 GB is about RM850+-. I am hoping that the price of the dropped so i can upgrade the RAM =). Please give some comments about the screen shot. There will more screen shots coming soon.