Yes but you will need a Premium MegaUpload Account..
1. Log in to your RapidShare premium/collectors account and make sure that Direct Downloads is enabled.
2. Copy and paste this link javascript:alert(document.cookie) to the URL bar and hit Enter. You should get a popup something like enc=some-random-codes-here. Right click at the characters, click select all and then again right click and this time select Copy.
3. Now log in to your Megaupload premium account.
4. Go to Megaupload Multifetch Cookie Manager page.
5. Enter the following details and click Add Cookie when you are done.
Domain = www.rapidshare.com
Cookie name #1 = RapidShare1
Cookie value #1 = Paste the random codes that you got from step 2.
6. Click New file fetch link.
7. Enter the RapidShare link that you want to Fetch URL and enter a description of the file. Click Fetch file to Megaupload button.
Megaupload will now start downloading the file from your RapidShare account. Because both RapidShare and Megaupload has very fast download and upload speed, it took merely 30 seconds to transfer a 100MB file. This is definitely useful to transfer files around but like I said earlier, you will need to have premium accounts for both RapidShare and Megaupload to work.