Here's a guide written for non-linux users on how to root your droid. What you do beyond that, well, I have another thread set up for that. Let's get going!
You will need the following:
http://www.4shared.com/file/168496608/8fa27888/droid-root.html
OR
http://www.mediafire.com/?ydaqjmditjh
OR
http://www.multiupload.com/XYPZLK4K22
(Those 3 are the same file, just use either link, and choose another if any is dwn)
AND
http://developer.android.com/sdk/download.html?v=android-sdk_r04-windows.zip
AND
http://www.magicandroidapps.com/su.zip
AND
http://www.smilepak.com/temp/Droid_USB_Driver.zip
Once you have all these files downloaded, extract them all into a new folder at C:\Android
You should now connect your Droid to your computer and Mount the SD Card through the phone (A dialogue will pop up on your phone asking to connect your SD Card. Click Mount)
Courtesy of Fadelight:
(go to Device Manager. There you will see your droid (A855) with a yellow "!" next to it. Right click. Select "Update driver" and point it to the android folder. That is where the drivers are.)
Go to the C:\Android folder you created. Rename the file droid-root.zip to update.zip. Then take update.zip and move it to the SD Card on your phone.
Once this is done, unplug your phone and turn it off by holding the top button, then selecting Power Off.
Open your phone's keyboard. Hold down the letter X key on the keyboard and power your phone on WHILE HOLDING THIS KEY DOWN. You will see the Motorola logo, followed by a graphic with an ! mark on it. At this time let go of the X key and the power button. Press and hold the Volume + key on the side of your phone, then press the camera button while holding the Volume + key.
Now you will be presented with a menu. Navigate to "update" using the D-pad, and click the middle button. Now wait for the process to finish.
When it is complete, your phone will power up again. Go to Settings->Applications->Development and check the USB Debugging checkbox.
Connect your Droid to the Computer again.
Click Start on your computer, and click run. Type cmd in the box, and hit ok. Now type the following, pressing Enter after each line:
cd c:\Android\tools
adb push su /data/local
adb shell
su
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
cd /system/bin
mv su osu
cat /data/local/su > su
chmod 6755 su
ls -l *su
(you should see the following)
-rwsr-sr-x root root 76200 2008-08-01 05:00 osu
-rwsr-sr-x root root 76200 2009-05-30 11:28 su
(now continue typing these following lines to finish)
sync
reboot
You're done!