Great idea. Inline skating's the best way you can make use of the off-season to improve your ski technique.
I notice you're in Vancouver. I train regularly with Lorne Milne, who's a level 3 inline skate, skate-to-ski, and ski instructor (plus CANSI, CASI certified). He's been coaching me towards my level 3 now for a year, so I'd definitely recommend sessioning with him. He's also really reasonably priced. We do group lessons weekly.
When buying skates, if you're looking for a ski feel, you'll probably prefer a hard shell boot. Avoid recreational skates as they tend to deform too easily when tipped on edge. Skates with larger wheels feel more like GS skis (and are much, much harder to learn on), while smaller wheels feel like slalom skis. When starting out in Vancouver you're probably best off using 84mm wheels with a fairly soft durometer (~80a).
In Vancouver the best skate store hands-down is Shop Task. The owner, Leon, is really approachable and knowledgeable (It's worth calling beforehand to make sure Leon's working). There are many types of skates for the different disciplines within inline skating, so I'd say to go see an expert to help guide you (or do more digging into what interests you). I'm up to four pairs of skates now, and each pair skates differently in different terrain.