imo since ulduar its better just solo boxing raids with friends, guildies, and pugs. i recently re-activated my shamans to solo heroics for badges for my main, but even still I find it just faster to pug the daily heroic many times (esp if its oculus or HOS or OK).

I've done the new 10/25 both bosses on 4 diff chars so far, they are pretty easy when solo boxing and you have decent people who can follow directions - the two tanks and at least 2 healers have to be very well (ulduar25) geared, but they are by no means DPS races. I wouldn't even want to try multiboxing them. Nice thing is three of my guys have won items so far, and the raids drop VERY nice items!

For first guy, only 4 or 5 snobolds drop and then no more drop (if you look closely, the snobolds are actually on his back at the start). When the snobolds stop the fires also stop. best strat is to have all dps switch to snobolds as they come up (mark with skull the current target) then burn boss. tanks switch every ~3 stacks.

For second guy, tank them both kinda close to each other but face the worms opp ways. People who turn green just run next to dreadmaw. Kill acidmaw first, healing the second tank through enrage is easy. Third guy is a joke, just don't stand in his way when he charges (hard if you are on follow though, since he stuns after knockback and one char will be thrown one way etc).

For second boss, its a lot of complexity but not too hard. DPS adds, purge/spellsteal boss, move out of fires, pretty easy to 1 shot.

The new 10/25 mans are supposed to be puggable in normal mode, its only heroic mode thats supposed to be difficult. I've had pretty good success with pugs so far, killed every boss up in both 10 and 25 on multiple chars.