Web-Based Image Resizing / Rotating Script

Hi. I have a Joomla Website that uses the AdsManager component to allow users to post their own Ads including images. Users being users, they are trying to upload ridiculously large files, 4 at a time, and complaining that they cannot do it because of timeouts etc. I want you to build a tool ro script, and/or modify AdsManager to let users upload images one at a time and insert the url to them in the AdsManager fields. The script should allow users to choose a file from their hard-drive. Then it should automatically read the dimensions of the file they are uploading to determine if it is a portrait or landscape picture. The script should then automatically resize the image so that the longest dimension of the image is reduced to a pre-determined width (say 600 pixels). Finally, the script should display the image and allow the user to easily rotate it in 90 degree intervals, and if possible also crop it. To ge a rough idea of the upload / resize functionality, please see this:? <[login to view URL]> ## Deliverables Please tell me how you propose to deliver the solution. I am open to suggestions... Thanks for looking and bidding.