Dunno if it's a bargain but I've just got some face and eye protection from actionhobbies for less then £20 including p&p.
Smoked viper tactical- http://www.actionhobbies.co.uk/Viper-Smoked-Tactical-Goggles_A22D7P.aspx#.WwBEdp8o80M
Viper Gen2 Crossteel Face Mask- http://www.actionhobbies.co.uk/Viper-Gen2-Crossteel-Face-Mask_A225S0.aspx#.WwBEzp8o80M
I hope they aren't total trash