Yes there are several options. I used to use Flickr but switched to Imgur. Very simple...click on pic, select size, copy and paste the BB code. I use Large Thumbnail size but do a preview to see the size you like.
P.S. A how-to I picked up from another OG member: If someone posts a huge pic whereas you need to use the scroll bars (a pet peeve of mine) just right-click on it and select "Open in new tab" and it will be sized to your screen.
