Nice one mate, soooo satisfying the first time you do it isn't it? Once you've done it a few times you can change the disc and pads on one side in under half an hour easy
Assuming you have an impact driver handy incase the retaining screws are seized, changing the front discs is no harder than the rears. You will need to remove the two bolts on the rear of the caliper holing them onto the bracket with a 14mm socket/spanner IIRC. Then pull the caliper out of the way and take the screws off the discs, they might not be too stubborn in which case you might get away with just a screw driver but I would give the screws a little squirt of WD40 and leave for a bit then attack it with the biggest ratchet and screw driver bit you have, this will help by adding leverage while you push into it.
Changing the pads is easy too, you just need to hammer the pins out from the front with something of a suitable size, then while pushing the end of the retaining clip in, use a pair of pliers and pull the pin out the rest of the way. Then do the other pin and pull the retaining clip out, the pads should just slide out. As for the pushing the pistons back in I assume you have a tool, I just use my hands lol.
Of course all the while the brake fluid cap should be loose and don forget to copper grease on the back of the pads. While you have everything apart try to brush out the dirt and spray with some brake cleaner.
No real tips mate, its quite straight forward
