That's not a hardware modification question, it is only in the purist sense (but not enough to belong to that forum).
I say do it, depending on what you use your Xbox for.
Use it for XBMC/P ? Do it.
Use it for Game backups ? Do it.
Movies? Do it.
I would do it. Say your thomson dies eventually you'd be paying $80 instead of $20.
If you can spare the cash, then do it.
Morien <