Archos, Apple and Microsoft are the only manufacturers I'm aware of that makes/made portable devices with storage greater than 80GB in the past couple of product years. Even if there were others, these are definitely the Big 3 when it comes to cap room. None really play friendly with a $200 price ceiling, unless bought used or discontinued.
In terms of 80GB+ storage, there were others like the awful Wolverine MVP from around 2005 or 2006 (I recall Target sold those, mostly because the MVP's red case matched the Target logo color) and the DMC(?) 100GB (besides not being sure of the company letters, I don't remember the model number or name) from around 2003/2004 (I think), but these were products that were marginal in quality and obviously weak in their availability and consumer support, and--if I remember right--were pretty expensive in their day.
Just did a Google search; looks like Wolverine's still in business. They have something called the ESP that has a 120GB HD. Also @ 120GB, there's some product line/brand called MemoryKick that makes a device. From here you'll have to Google them to see what those are all about, but I'd bet that these two and any others like them that might exist will have pretty weak support, and you'll be taking a chance on such lesser-known brands. And besides, from what I'm seeing in the retail search results neither of these two are cheap enough to make it under your $200 max.
Did I say tough criteria? Better make it impossible criteria, at least at this time.