There's a lot of talk at various blog sites and WoWInsider about Hard Modes, specifically in relation to Ulduar and the next patch changes with 3.2 and the new raid instances. Discussion has ranged from a variety of, you should even consider a HM until you have cleared Ulduar to people trying to achieve HM when they are far below the capability- and how devastating that can be for the raid roster. I know just within our guild there was some discussion- but I firmly feel we arrived at the best solution for us- simply put, we will attempt a HM, and give it 3 solid attempts- and based on those attempts, call it and do the boss normally, or try again. There is no reason to ever burn someone out wiping.
We've gradually been building our experience up on the towers. Perhaps we'll try 3 towers up on FL this time and see how the attempt goes- but it is nice to know up front what limitations we have in place already. As far as DPS race HMs, there is really no reason not to try for these every time- because they cost nothing. We can increasingly push ourselves harder/further. Since our focus is currently Yogg and Iron Council Medium Mode, we've been pushing through content quickly to have time to focus on these fights; it's paid off too, because we are mastering Yogg's phases, and IC would have been cleared if we would have had a second hunter Sunday night.
Recruiting has really paid off, and we've also very quickly filled our immediate needs, and hit "critical mass" as far as our roster is concerned. With our latest additions, I really feel it will definitely make our first HM- IC – Med, very possible, which will then unlock the way for us to begin working on other HMs. Guild Bank Repairs on Sunday also helped as we were working through Yogg, and we did a 180 on improving our number of attempts for the time we had available. On the whole, aside from some miscommunication on 10 man raiding (I swear bliz loves to put these things out there just to test guild mettle), our core is stronger than it has ever been, with a great group of core people. The choice is always that YOU choose who YOU raid with. I love my decision!