I can't say I've had any experience with that particular drive, I upgraded my MB back in feb and I haven't had any problems
it's ridiculously easy and totally doable by almost anybody.
I would however recommend that you consider the 5400 rpm drive? There honestly is relatively little difference between a 7200 and a 5400 rpm drive in terms of performance unless you're taking it to the max. A 7200 drive will suck power and shorten your battery life some.
As far as cloning your drive goes, I used superduper. It's a brilliant, awesome, FREE piece of software that can form a bootable volume anywhere. I cloned my drive over to my external HDD, then I rebooted it holding the T button down to select my Target Disk, then checked that it booted properly. Be aware it will be a lot slower booting from the external HDD since the mac is running via. a USB connection so it will be slower than SATA is. Once you're sure your HDD clone is working, you can replace the internal HDD. this takes about 5 minutes and once that's done you're ready to roll with your new HDD. Start the mac, booting to the external HDD and run disk utility (found in utilities). Your new HDD will not be mounted on the desktop and when you run the **** utility, it will be flagged up as an unknown device. When asked if you want to initialise it, click yes and mac will prep and mount the drive and format it for you.
Once you've done this, you have a couple of options. You can either:
a) superduper your external HDD over to the new internal HDD. This will port the entire image back to your new hard drive, as if nothing had ever happened, and the mac will be ready to roll once more. When you do this, remember to check the startup disk which has been selected. If you don't do this your mac will flash a question mark folder every time you restart. It eventually finds the right disk image but it is REALLY worrying xDD. To do this just select startup disk in system pref and make sure the internal HDD is selected and then click the lock to prevent further changes.
b) you can do a fresh install of OS X and just port your bits over (apps files etc...) This is your best bet if you've had problems with apps not working wince your upgrade to 10.5 or you just fancy a fresh start!
Hope this has helped xDD
Dave