Shopping list suggestions for RHS London Orchid Show?

[Rowangreen]

I'm off to the preview night tomorrow, and thinking about a wish list! Suggestions invited...

I need... easy to grow (I'm a begginer!). Grown in a pot, not mounted. Conditions: I have a south facing room that gets very hot in summer, curtains sometimes closed to keep the heat down. Plants can be put out of direct sun at back of room. Winter probably doesn't go much under 20, but might be colder drafts when I open the windows! Or North facing room which is cooler and darker: minimum about 15 C in winter. I have some suplemental lighting in there. Water is quite hard (I run through every time I water to stop salts building up, which seems acceptable to the orchids I already have). I don't have outside growing space I can use.

Flowers: I'm not fond of size for the sake of it. Scent would be a bonus, but I prefer spice rather than floral. Unusual is good, especially if they are elegant too!

My current list of possibles to look out for:

Maxilaria Tenufolia
Maxilaria Variablis
A zygopelatum (if I get to smell one and like the smell!)
Leptotes bicolor (been reading the project sugestions, and it sounds good!)
Adaglossom Summit 'French Town'
(Whatever it's called now) Memoria Jay Yamada

What's the betting I come back with a totally different list?