i use photobucket, and you can download the "photobucket uploader".. its a little program that lets you do the whole uploading process from windows (meaning its much faster) and then you just tell it to upload all your photos and it resizes them to 200kb and puts them in your album...
then you go to your album and under each photo there is a URL, TAG, and IMG lines you can copy...
To post on here, you would just copy what's in the IMG line, and put it straight in your text, as it automatically puts the codes in....