For Soldering, I'd recommend:
Draper 40W Soldering iron
http://www.halfords.ie/webapp/wcs/stores/servlet/product_storeId_11101_catalogId_15551_productId_154788_langId_-1_categoryId_212549
Under 20 euro and replacement tips are readily available.
To go with it, but any standard 'electronic' lead free solder (not the plumbing type) Again, Halfords have a roll for a few euro
http://www.halfords.ie/webapp/wcs/stores/servlet/product_storeId_11101_catalogId_15551_productId_196405_langId_-1_categoryId_212549
You'll find similar in most hardware/electrical shops if you're not near a halfords (or you can buy them online).
In terms of 'useful accessories' I use / would recommend something like the following:
- http://www.ebay.ie/itm/Helping-Hand-Glass-Magnifying-Adjustable-4-Model-Airfix-Great-For-Soldering-/400375217743?pt=UK_ToysGames_ModelKits_ModelKits_JN&hash=item5d3838fe4f
Handy for holding components and perfect for grabbing wires for tinning, etc. The magnifying glass is also useful for small detail work.
- http://www.ebay.ie/itm/New-5x-Universal-Cleaning-Sponge-56-x-56-x-2mm-Solder-Iron-Yellow-Cloth-Pad-161-/120984793697?pt=UK_Home_Garden_PowerTools_SM&hash=item1c2b417261
Needed for cleaning the iron tip when using
- http://www.ebay.ie/itm/CK-Automatic-Wire-Stripper-495001-Brand-New-/130329732810?pt=UK_Hand_Tools_Equipment&hash=item1e5841e6ca
Auto wire stripper - trust me, you'll wonder how you lived without one of these!
For dropper wire ( to solder to the tracks), I use:
- http://radionics.rs-online.com/web/p/security-alarm-cable/5102202/
In addition, a few pliers, tweezers, and bits and bobs are handy, but that's everything you'll need to safely and comfortably solder your layout