As Denny pointed out, you will not get lager-like flavors by starting fermentation out warm. During the first 72 hours is when the yeast make most of the fermentation characteristics that will be the flavor of the beer. If your fermenting warm, you won't get the flavor characteristics you are looking for in a lager. It may not make a bad beer, but if your going to create ale-like esters in your lager, why not just stick with ale yeasts? That doesn't make much sense, now, does it?
For my lager schedule I start out at 48 before I pitch yeast. Aerate twice as long as ales (I prefer pure o2) pitch twice as much yeast, and let fermentation kick into high krausen at those cold temps. After about 72-96 hours you might decide to bump the temp up 2 degrees, and continue doing so every 24 hours until you get up to 56-58 degrees and let the fermentation slowly finish up. When signs of fermentation seriously start to slow down you could even let the temp raise to 60-62 to really let the beer finish cleaning itself up. Wait a few days around the 58-62 degree mark after fermentation has mostly stopped, then you can crash down to 32-34 degrees and lager for at least 1-2 weeks.
For low gravity lagers, you really only need a couple of weeks lagering time as long as you had a healthy fermentation, pitched at proper temps and got a good d-rest, etc.
Higher gravity you may want 4-6 weeks lagering.