Updating OSX, screen black, fan running, disc wont eject

Question

Old MacBook pro - late model 2006 (Caore 2 Duo, 3 GB RAM).
Just put in a new HD after old one died.
doing a clean load of software as the old HD was dying during my last backup and backup failed (wonderful...)
Has been running on Leopard, but wanted to upgrade to Lion, so just used Snow Leopard disc to upgrade to that first. Got to around 20% done and screen went back. Fan is running (loud), hard to tell if disc spinning. Left for hours and nothing. Powered off, pulled battery etc, nothing. Power up, still black screen and loud fan. Disc wont eject!!
Ideas on my next move? 

Answer 1

Clean Install of Snow Leopard
     1. Boot the computer using the Snow Leopard Installer Disc.  Insert the disc into the
         optical drive and restart the computer.  After the chime press and hold down the
         "C" key.  Release the key when you see a small spinning gear appear below the
         dark gray Apple logo.
     2. After the installer loads select your language and click on the Continue
         button. When the menu bar appears select Disk Utility from the Utilities menu.
         After DU loads select the hard drive entry from the left side list (mfgr.'s ID and drive
         size.)  Click on the Partition tab in the DU main window.  Set the number of
         partitions to one (1) from the Partitions drop down menu, set the format type to Mac
         OS Extended (Journaled, if supported), then click on the Partition button.
     3. When the formatting has completed quit DU and return to the installer.  Proceed
         with the OS X installation and follow the directions included with the installer.
     4. When the installation has completed your computer will Restart into the Setup
         Assistant. Be sure you configure your initial admin account with the exact same
         username and password that you used on your old drive. After you finish Setup
         Assistant will complete the installation after which you will be running a fresh
         install of OS X.  You can now begin the update process by opening Software
         Update and installing all recommended updates to bring your installation current.
Five ways to eject a stuck CD or DVD from the optical drive
Ejecting the stuck disc can usually be done in one of the following ways:
  1. Restart the computer and after the chime press and hold down the
      left mouse button until the disc ejects.
  2. Press the Eject button on your keyboard.
  3. Click on the Eject button in the menubar.
  4. Press COMMAND-E.
  5. If none of the above work try this: Open the Terminal application in
      your Utilities folder. At the prompt enter or paste the following:
        /usr/bin/drutil eject
If this fails then try this:
Boot the computer into Single-user Mode. At the prompt enter the same command as used above. To restart the computer enter "reboot" at the prompt without quotes.
Upgrading to Lion
If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.
You can purchase Lion by contacting Customer Service: Contacting Apple for support and service - this includes international calling numbers. The cost is $19.99 (as it was before) plus tax.  It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
     Lion System Requirements
       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
           or Xeon processor
       2. 2GB of memory
       3. OS X v10.6.6 or later (v10.6.8 recommended)
       4. 7GB of available space
       5. Some features require an Apple ID; terms apply.