Also, really keen as suggested to strip out the bb, headset and wheels to grease up the bearings. Having never done this before, do I need any special tools and which grease is reccomended?
You need quite a lot of special tools.
For the headset, you need a thin headset spanner (probably 32mm) and a large adjustable spanner. If the headset adjustable race is just knurled and doesn't have spanner flats, you only need the large adjustable spanner. This latter type is hard to get right as the locknut can't be tightened hard against the adjustable race and you are relying on the locktab washer in between them, which never really works.
For the hubs, a small adjustable spanner and a thin cone spanner of the correct size. It is probably different front and back. You will also probably need to remove the freewheel to access the rear bearings, and this will require a freewheel remover of the correct type - probably Shimano UG* - and either a securely-mounted vice or a very large adjustable spanner and a mallet.
The bottom bracket is probably a cup-and cone type. Traditional Raleigh ones can be serviced with just a large adjustable spanner and a lockring spanner. More advanced cup-and-cone types often need a pin spanner to hold the adjustable cup while the lockring is tightened. Don't try to remove the cup on the RH side unless it needs replacing. If you do, it has a LEFT HAND THREAD. If the BB is a sealed unit, leave it alone unless there is play when you grasp the cranks and try to rock them from side to side. Removing a sealed unit generally needs the Shimano BB tool and a large adjustable spanner. Don't forget the left-hand thread on the RH side!
Any general-purpose bike grease from
Halfords is fine, as is automotive lithium- or calcium-based grease. Bikes are not very fussy. Don't use anti-seize or Vaseline in bearings, though!
*not HG (for freehub lockrings) - they look just the same but the HG one is fractionally larger in diameter!