i would say yes if you just trying to flash the dvd drive to play back up games.. if you have done a wii and psp at least seems you can follow instructions.. like they person said above.. read a few tutorials.. watch some you tube vids and when you feel confident.. go for it.. there are many good tutorials out there!! just follow instructions carefully.
if you have a jtagable xbox and am thinking of doing it DEF go for it you wont regret it!! good soldering skills are a must though.. and the same as above.. once you have the hardware setup and you know its working.. follow instructions (tutorials)!!! if you have limited experience with hardware mods i would really suggest the cygnos360 "mod chip" its easy to install (still needs soldering).. simple usb connection and pretty easy to use software for reading/writing the nand and access to xellous without the need of a barbaric TV =P