i use a TRICO sports hard case which i brought for about 340 dollars on eBay. It seems a little steep for a case, but for a very good bike (in which I'm sure you have spent a decent amount of money on) it should deserve a fitting case.
I absolutely love the case. It is very strong and professional looking case. it came with three pieces of semi hard foam in which to layer the frame and wheelset. The instructions were right on the money about disassembly procedures and bike placement. I just removed the seat/seatpost, wheels, pedals and handlebars. Just remember to mark the position with a sharpie or marking pen. Oh and the handlebars weren't removed all the way, but rotated to fit when i turned the fork to the side. It even comes with framesavers which were basically bolts and wingnuts that resemble wheel skewers that you installed in place of the wheels so in case some excessive pressure were to come on the frame it would not adversely affect the geometry of the forks. Then again the structure and size of the case shells made it strong enough to withstand even the most harshest of baggage handling and heaviest of luggage. I have 58cm size bike and it fit with some room leftover for accessories such as floor pump, helmet, neccesary tools, two water bottles and a pair of shoes. There are five wide heavy duty nylon straps with quick release buckles that tighten the case. The first time i packed the bike, it really didn't look like both shells would actually fit, but it did. Working one strap on either side at a time did the trick. The foam compresses even more making it more snug around the frame / parts. Anyway by the time i was done, the thing was solid as a rock.
You should always prep and pack the bike carefully with any case just to make sure it doesn't move around. Use bubble wrap or cardboard for the dropouts and keep sharp edges to a minimum. It seems overkill, but it's a just an extra 5 - 10 minutes to prep this stuff. One mistake i made was not removing the wheel skewers. I ended up packing it with it attached and when i went to unpack it, I found the skewers had poked a hole through the foam. No big deal, reallly but skewers are sharp enough.
This case has seen seven countries and dozens of airports and has yet to see signs of abuse.