I try and take a multi and a couple of others each day from my "selection". I have a good diet but figure taking a "cover all bases" approach helps. I use the brand Blackmores as it fared really well in the Choice Reports but like all things brand is a personal choice thing. I see that your in Melbourne, for decent prices on any vitamin brand check out some of the discount chemists, I find I can save 30% on most supermarket prices.
My vitamin list is as follows :
Womens Multi Vitamin
Antioxidants (Blackmores Bio Ace Excell)
Bio Magnesium (supposed to help with muscle cramps and I do a lot of running)
Evening Primrose Oil (one of the plant Omega oils)
Flaxseed Oil (another of the plant Omega oils)
Fish Oil (a non plant Omega oil)
Non tablet boosts :
Malt Extract - Its like honey, you have it generally by the tablespoon and its full of the B group Vitamins
LSA - Linseed, Sunflower and Almond Meal - All full of proteins and Omega's, I just sprinkle a tablespoon over my cereal
Psylium Husks - Pure fibre in its natural form, got it as a reccy from someone on here, again, just sprinkle on the cereal or pop in the bolognaise / smoothies.