Microsoft Encarta Deluxe 2005 review:4 stars (Good, but better Encarta Reference Library) - ENCARTA DELUXE is good, but it is better to buy Encarta Reference Library, because it has more text, more multimedia and more features (Atlas and so on). I have reviewed it if you want extra information. The PC system requirements are about the same.
Microsoft Encarta Deluxe 2005 Features:
Dictionary (Dictionaries)
Computer software (programs)
Reference
Encyclopedia (Encyclopedias)
CD
Access a world of information quickly and easily
Easy-to-use, up-to-date info for work, home, or school
Research topics and get accurate comprehensive information
Explore science, history, cultures, current events, and more
New and updated articles; interactive multimedia

Microsoft Encarta Deluxe 2005 is the CD-ROM version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around  19.99USD.