The SE34I.5 would be the same power as you have now, but it would be Triode with zero negative feedback.  Unless you think you would like to have more power than you do now, no reason to spend the extra money.  Only you know how many times you've turned things up and began to worry about power.

Steve

I've owned an Almarro A205, an SE34I.2+, and a Torii Mk IV, in that order.

I agree with Steve that if you're driving the Omegas the SE34 will give you all you need unless you like it crazy loud or have a really big room.

If you think you might want different speakers in the future and you can afford it, the Torii will give you way more flexibility.

You really can't go wrong with either as they both sound great. As a bonus, the Almarro is bringing top dollar these days since they're no longer being built.

David