The stroller is nice, but I had three. (Back when there were no
three in one combos.) The first one was a heavy duty one, good for
taking baby out on long walks while I got my exercise. This is
great for when baby is young and cannot sit up just yet.The next
one was a fixed umbrella stroller. Fixed meaning, fixed back
rest, no adjustable settings. Very light, very easy to fold/unfold,
great for heading down to the shops for a quick errand. Remember to
buy a netted basket to attach to the back of this stroller so your
sis-in-law can free both hands up to push the stroller. These sell
for as little at S$10, great for when baby is a little older and
able to sit up. The third one is a nice blend of the above two.
Light enough to maneuvre while shopping, has a 3-position (or more)
adjustable back so baby can sit up (on the upright position) and
see the world or sleep (3-position). Chicco (Italian brand) makes a
really durable one. Pai seh to tell you that I still have mine
stash in Mum's house in Sg. 
This Chicco one I had also had an adjustable
shade to protect baby's tender skin. Chiccos aren't cheap though
but they last a heck of a long time.
What I found most useful was a plastic sheet (Toys R Us) which
you can drape over the entire stroller on wet days. Baby stays dry
and can see the world at the same time.
As for the baby swing, get one that has a long battery life,
with many features like adjustable speeds, etc.
You might also want to think about getting a bouncer. This is
great for young babies who can't sit up yet. It allows them to see
the world. My kids loved it.Get the one with the mesh fabric. Not
only is it cooler for baby and breathable, but when baby spits up,
it's easier to clean.
And one more thing, if your sis-in-law decides to go the
pacifier route, get a pacifier tether. Head for Robinsons, they
have a nice range of stuff. The tether is great for making sure the
pacifier doesn't land on the dirty floor when baby spits it out.
Don't get the one that uses a safety pin to attach to baby's shirt.
Get the clip variety.
Waaaah... experience speaks!! 
Thanks, jetta!
I've seen the mothers here push around some pretty fanciful
strollers. Some look like the Mercedez Benz of
strollers! 
I think I'll get the stroller, don't care if they are already
buying one, because you will need more than one, right?
I kinda like the swings
too... think they can bounce in it, if I'm not wrong.
I still like the Brown Bear high chair too!
