Unlock (HTC Method may void warranty, i dont care ) + CWM = Can flash any custom rom
 register @ htcdev [dot] com
 just follow on-screen instruction until successfully boot with unlocked bootloader
now the important part : (u can use4EXT Recovery Touch (the best. recommended) or Revolutionary custom CWM recovery image)
[3a] 4EXT Recovery Touch (THE BEST) See HERE for more info.
[3b] Revolutionary CWM
(i) download Revolutionary shutteru CWM recovery from here
(ii) reboot device in bootloader mode > fastboot > plug in usb cable until u see FASTBOOT USB on device screen
(iii) now in adb type : fastboot flash recovery cwm-220.127.116.11-shooteru.img
 To root stock rom,
(i) download Superuser-3.0.7-efghi-signed.zip and copy to sdcard
(ii) reboot to recovery mode
(iii) select install zip frm sdcard > choose zip frm sdcard > select zip file as in (i) step above > proceed to flash.
Now device is Bootloader Unlocked + CWM recovery + S-ON & ready to flash custom rom.