Open Office is a great suite, but it doesn't have that many programs, and it doesn't have image viewers, etc. Others like KOffice have Suites that combine many more apps.
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KOffice requires KDE for windows.
KDE for windows is still under development. A lot of things still don't work correctly.
You can get the KDE installer here.
You could use Cornice Portable for your image viewer. Also what are the other app types you require?
PortableApps.com Advocate
You're right that OpenOffice.org is a great office suite. Also correct it doesn't have many programs; it has exactly one because everything is included in a single executable iamge. You get a word processor, spreadsheet, presentation, drawing, and database applications all for the same price. However, you are wrong about it not having image viewers. You can open an image in Draw. You can insert images into Writer documents (and Calc spreadsheets).
If you want a more sophisticated image manipulation program then install GIMP Portable as well. As OpenOffice.org is a full office suite so GIMP is a full image editing/manipulation program (with almost the same features as the much more expensive Adobe Photoshop).
With lighter apps you would get the same and OS too for the same price.
"Those people who think they know everything are a great annoyance to those of us who do." Asimov
Please delete.
"Those people who think they know everything are a great annoyance to those of us who do." Asimov
one other thing StarOffice suite has been rebranded and you know what
OpenOffice.org 
your friendly neighbourhood moderator Zach Thibeau
Actually OOo is based on StarOffice and StarOffice nowadays is using advantages of OOo together with some closed source parts. While personally I think it's a strange construction...
Eventually an Office suite is about creating documents and the OpenOfficeorg suite handles that quite well. There's always an application that tries to offer more to be of some competition.
Star Office and WordPerfect are commercial applications so I don't see why these are requested...