Can I copy my operating system and all its tweaks to a replacment hard drive ?

[Chew Barker]

I am currently running windows xp pro on my primary drive, this hard drive has just the one partition c: size 40Gb

I have a second drive installed which is mostly data, documents and a few programs installed on this d:

Now I have just bought a new hard drive 80Gb to replace to current c:, I would like to avoid rebuilding everything on the new one. Can I firstly remove the second drive that is in at the minute-then stick in the new hard drive as a slave- copy all of c: to this new disk-take out the old c: and chane the new drive to primary ?

will this work? My guess is that it wouldn't becuase nothing (I dont think) will have been written to the mbr on the new disk.

so my second idea is to install windows xp pro on the new drive using the installation cd then to copy everything and overwrite the newly installed stuff.

The reason I do not just want to rebuild everything from scratch is I have made little tweaks like changed dlls so I can have nice themes and also servicepack 2 and all my updates would need to be downloaded again.

Will any of these methods work ?
Any other advice ?
Thanks in advance