Great lost lps...the 80s....synth pop and others..

Fine young cannibals, the blue Nile, camouflage

Many good suggestions above, also

Yazoo - Allison Moyet and Vince Clarke
OMD
Depeche Mode (were even better once Vince left - Construction time was a landmark album)
The Cult
Duran Duran (took 70's disco - think Chic and incorporated into Synth pop of Roxy Music style)
Flock of Seagulls
Annie Lennox/Stewart Eurythimics
Ultravox (great sound effects)
New Order
Pet Shop Boys
Soft Cell
ABC
Blancmange (combined synth pop with Indian instruments)
Howard Jones
The Fixx

and great producers - Trevor Horn, Colin Thurston, Martin Rushent, Rupert Hine,Gareth Jones, Nile Rodgers

Most of the bands listed below, while having strong techno influence, were definitely not pop. This was in serious rotation back in college days along with much of the above.

Section 25
Propaganda,
The Clan of Xymox
Front 242
Tack-Head
Ministry
Nitzer Ebb
Nine Inch Nails-(pretty hate machine was awesome!)
The Revolting Cocks
Skinny Puppy
Erasure (now that was techno pop)
Yaz
The Communards

Pet Shop Boys ALL THEVWAY!!! The British dual is still going strong
worldwide, big followings in Asia and Brazil. Still issuing LPs for every new
release. I've got them all, even the Dance Mixes (not sure why, but I got
them). Both wife and I are big PSB fans. still bummed that we missed their
last tour because my wife was very pregnant at that time.

Some other honorable mentions:
OMD
Depeche Mode
New Order
Erasure
Thompson Twin

FrankC

I have many of the titles you guys have been mentioning. I love to play Propaganda P-Machinery on vinyl to demonstrate the bass response of my system; that song will shake my entire house when I play it. Also, I was curious if any of you have the Blancmange LP with West India Company "Ave Maria" on the flip side? "Ave Maria" was really huge at the dance clubs back in the early to mid 80's, and I picked up that 12" at one of the DJ record stores at the time.
Jon