Your tank is tricky to scape in proportion and is not really deep enough for stem plants. I've had a go - take a look at
http://www.ukaps.org/forum/threads/first-time-aquascape.35466/
It is shallow and as a consequence you will have better light than many but the biggest issue is depth of view, there is no room for foreground middle and back so I have gone for really small leaves to offset this. I used in-vitro plants Hemianthus cuba, echinodorus tenellus, Pogostemon Helferi, Staurogyne Porto Velho, Micranthus Micromoides dwarf hairgrass plus anubia nana, weeping moss, christmas moss. The tank has a soil layer under Tesco cat litter ( which is a bit light for good rooting IMO). I used a dry start which I would recommend.
I found one portion of 4 types was more than enough to scape the tank and cuttings have already started another tank of the same size.
I'm in South East London and have 8 tanks on the go all planted to some extent. I would say that easy plants are anubias, cryptocoryne, christmas moss, echinodorus, vallisnera, especially if you have nutrient in the substrate.
I've tried most on Martin's list and lost a lot through not feeding but some tanks are better than others. I have one where vallis, crypt pontederia and anubia run rampant with no intervention and two others where crypts and anubias get by happily enough.
If I were you I would look very carefully at scale, many plants are going to be too big or get too tall.
Have fun!