As you'll see from my signature, I had a ...,T400, T410 and now a T410s. This is all within the space of a few months also and i'll tell you why. I had a really nice T400, more than powerful enough (P8600) and thin and light (for a 14" machine). Ended up getting the T410 (Core i5, WXGA) because of the "Jones's" so got a nice deal and loved that. After about a month of using it the weight and general bulk of the machine made me not like it as much. It was super fast and definitely handled everything i wanted to do with it but it was just big (IMO). The T410 gave me good battery life for the 6 cell. I sold that one and got the T410s machine and got the Core I3 version since i definitely didn't need all that power.
- Much better battery life (and options)
- Better LCD (IMO)
- 2.5" Drives (cheaper options in SSDs)
- Sturdy as a result of the thicker con below.
Cons: (mainly asthetics which may not matter to you)
- Heavy machine - 5.2lbs is a lugger all day
- Thick (1.02 -1.26") doesn't feel as svelte as the the older T4x series which i loved.
- Hotter with fan noise
- Really light, 3.79lbs feels like AIR!
- Nice and thin, .89" just looks so slim on my desktop and carrying in my bag
- Much cooler (maybe Core i3?) - no fan noise on battery.
- Like the layout better of ports (personal choice)
- Easier RAM changing (personal again
- Well it's definitely bad (compared) in battery life. 3.5Hrs MAX for normal office usage (not a problem for me really)
- 1.8" Drives are slower - only 5400RPM and SSDs are more expensive.
- LCDs are worse but they aren't much worse, honestly it doesn't bother me much at all.
- Extended battery options severly limited because of main battery location.
That's all i can think of now but i still love this thing more than any other Thinkpad i've had in a while. The T40 was my first MAJOR love (but we all know about the flex issues since it was so thin). The T410s is now number #2 but doesn't have the flex issues and is even thinner!
As for the option listed, i'd take the T410s (obviously) over the T410.