I go really nostalgic with some legacy Apple products:
Macs:
I'd love an iMac G4, the design was groundbreaking for its time and still looks absurdly gorgeous today
A PowerMac G5/Mac Pro, i just like the perforated aluminum tower design, what an amazing powerhouse!
Then on the portable side, The 2002 Titanium Powerbook G4, if you ask me, i wouldn't know exatly why, the design isn't exactly as great as other Apple products and it had quite a lot of technical flaws back then, but it's just that this thing it's made of titanium! and for 2001/02 it really marked a revolution in apple portable design, going from the plasticky one to the solid metallic one that we'd have seen on all the aluminum and unibody macbooks after it.
Devices:
I'd just love to collect old iPods models, I especially like these ones:
first gen iPod and iPod Photo
And a (more) modern iPod classic, I've never owned one of these
AND, an original iPhone, such a milestone product with an amazing design: I love the brushed aluminum back (and btw I'm really happy they got it back on the new iPhone 5 back, the tactile feel of the brushed aluminum on the iPhone its just amazing!)
AND, last but not least, my all time favorite Apple peripheral and one of my favorite products at all: the 30 inch aluminum cinema display:
This display is just gorgeous. Period. in my opinion its absolutely the best display Apple has aver made in terms of design and features. to me they're much superior to the current thunderbolt displays: higher resolution, amazing design, much better aspect ratio, and the monitor doesn't have annoying glare at all. I'm looking forward to get one of these used soon.
Then, I have to say that another product that was on my list was the great unibody Macbook Pro with antiglare 15 inch display. In my opinion, the best Apple laptop until now. 15 inch its just the perfect size for a portable computer to work with and yet to be compact enough for carrying, and as you may have noticed i don't like glossy screens so the anti-glare one made this the perfect laptop for me.
I had been wanting one of these for a long time and finally I got one used in mint condition earlier this year, amazing!