The only things LW makes now that I would buy are the glitters, the stained-glass lamps, and the Coach Lantern (simply because it's a dream come true in a small way, seeing LW actually reintroduice an older "fancy" model in some form). The glitters are quite nice, especially the little 8 oz which come in some vivid and showy colours. A bunch of those around a party - red, turquoise, purple, orange, pink - would be fun, or in a little cluster set at various heights.
If you want good flow, buy an older lamp. If you're not sure if it's a good lamp and/or a good buy for the price, but you like the look, post it here and ask. Or, drop me a mail (firstname.lastname@example.org) and I'll give you a rundown of what you're l;ookin' at price-and-condition-wise. Or, if your budget is high and you want the best, order from Mathmos.